Seen in an exception stack trace: we are wrapping `ApiFilteringActionFilter` around itself many times, once per filtered action, so effectively every action is doing a linear scan of the filtered actions, implemented recursively. I'm pretty sure a hashmap would be more efficient, and would avoid inflating the stack so much too.

```
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:86) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.action.support.ActionFilter$Simple.apply(ActionFilter.java:53) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at co.elastic.elasticsearch.api.validation.PublicSettingsValidationActionFilter.apply(PublicSettingsValidationActionFilter.java:101) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.core.api.filtering.ApiFilteringActionFilter.apply(ApiFilteringActionFilter.java:53) ~[?:?]
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:84) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
    at org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.lambda$applyInternal$3(SecurityActionFilter.java:163) ~[?:?]
    at org.elasticsearch.action.ActionListenerImplementations$DelegatingFailureActionListener.onResponse(ActionListenerImplementations.java:212) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
```
server/src/main/java/org/elasticsearch/action/ActionModule.java
import org.elasticsearch.action.admin.cluster.health.ClusterHealthAction;
import org.elasticsearch.action.admin.cluster.health.TransportClusterHealthAction;
import org.elasticsearch.action.admin.cluster.migration.GetFeatureUpgradeStatusAction;
import org.elasticsearch.action.admin.cluster.migration.PostFeatureUpgradeAction;
import org.elasticsearch.action.admin.cluster.migration.TransportGetFeatureUpgradeStatusAction;
import org.elasticsearch.action.admin.cluster.migration.TransportPostFeatureUpgradeAction;
import org.elasticsearch.action.admin.cluster.node.hotthreads.NodesHotThreadsAction;
import org.elasticsearch.action.admin.cluster.node.hotthreads.TransportNodesHotThreadsAction;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoAction;
import org.elasticsearch.action.admin.cluster.node.info.TransportNodesInfoAction;
import org.elasticsearch.action.admin.cluster.node.reload.NodesReloadSecureSettingsAction;
import org.elasticsearch.action.admin.cluster.node.reload.TransportNodesReloadSecureSettingsAction;
import org.elasticsearch.action.admin.cluster.node.shutdown.PrevalidateNodeRemovalAction;
import org.elasticsearch.action.admin.cluster.node.shutdown.TransportPrevalidateNodeRemovalAction;
import org.elasticsearch.action.admin.cluster.node.shutdown.TransportPrevalidateShardPathAction;
import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsAction;
import org.elasticsearch.action.admin.cluster.node.stats.TransportNodesStatsAction;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksAction;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.TransportCancelTasksAction;
import org.elasticsearch.action.admin.cluster.node.tasks.get.GetTaskAction;
import org.elasticsearch.action.admin.cluster.node.tasks.get.TransportGetTaskAction;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksAction;
import org.elasticsearch.action.admin.cluster.node.tasks.list.TransportListTasksAction;
import org.elasticsearch.action.admin.cluster.node.usage.NodesUsageAction;
import org.elasticsearch.action.admin.cluster.node.usage.TransportNodesUsageAction;
import org.elasticsearch.action.admin.cluster.remote.RemoteClusterNodesAction;
import org.elasticsearch.action.admin.cluster.remote.RemoteInfoAction;
import org.elasticsearch.action.admin.cluster.remote.TransportRemoteInfoAction;
import org.elasticsearch.action.admin.cluster.repositories.cleanup.CleanupRepositoryAction;
import org.elasticsearch.action.admin.cluster.repositories.cleanup.TransportCleanupRepositoryAction;