Downsampling is broken. Not sure why yet (likely caused by #97557). Invoking the downsample api results into:

```
org.elasticsearch.ElasticsearchSecurityException: no indices permissions found
        at org.elasticsearch.xpack.core.security.support.Exceptions.authorizationError(Exceptions.java:32) ~[?:?]
        at org.elasticsearch.xpack.core.security.authz.accesscontrol.SecurityIndexReaderWrapper.getIndicesAccessControl(SecurityIn
dexReaderWrapper.java:110) ~[?:?]
        at org.elasticsearch.xpack.core.security.authz.accesscontrol.SecurityIndexReaderWrapper.apply(SecurityIndexReaderWrapper.j
ava:76) ~[?:?]
        at org.elasticsearch.xpack.core.security.authz.accesscontrol.SecurityIndexReaderWrapper.apply(SecurityIndexReaderWrapper.j
ava:46) ~[?:?]
        at org.elasticsearch.index.shard.IndexShard.wrapSearcher(IndexShard.java:1590) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at org.elasticsearch.index.shard.IndexShard.wrapSearcher(IndexShard.java:1561) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at org.elasticsearch.index.engine.Engine$SearcherSupplier.acquireSearcher(Engine.java:1321) ~[elasticsearch-8.11.0-SNAPSHO
T.jar:?]
        at org.elasticsearch.index.engine.Engine.acquireSearcher(Engine.java:774) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at org.elasticsearch.index.shard.IndexShard.acquireSearcher(IndexShard.java:1549) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at org.elasticsearch.xpack.downsample.DownsampleShardIndexer.<init>(DownsampleShardIndexer.java:115) ~[?:?]
        at org.elasticsearch.xpack.downsample.DownsampleShardPersistentTaskExecutor.startDownsampleShardIndexer(DownsampleShardPersistentTaskExecutor.java:111) ~[?:?]
        at org.elasticsearch.xpack.downsample.DownsampleShardPersistentTaskExecutor$1.doRun(DownsampleShardPersistentTaskExecutor.java:87) ~[?:?]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:983) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
        at java.lang.Thread.run(Thread.java:1623) ~[?:?]
```
x-pack/plugin/security/qa/operator-privileges-tests/src/javaRestTest/java/org/elasticsearch/xpack/security/operator/Constants.java
"cluster:admin/xpack/security/token/invalidate",
        "cluster:admin/xpack/security/token/refresh",
        "cluster:admin/xpack/security/user/authenticate",
        "cluster:admin/xpack/security/user/change_password",
        "cluster:admin/xpack/security/user/delete",
        "cluster:admin/xpack/security/user/get",
        "cluster:admin/xpack/security/user/has_privileges",
        "cluster:admin/xpack/security/user/list_privileges",
        "cluster:admin/xpack/security/user/put",
        "cluster:admin/xpack/security/user/set_enabled",
        "cluster:admin/xpack/watcher/service",
        "cluster:admin/xpack/watcher/watch/ack",
        "cluster:admin/xpack/watcher/watch/activate",
        "cluster:admin/xpack/watcher/watch/delete",
        "cluster:admin/xpack/watcher/watch/execute",
        "cluster:admin/xpack/watcher/settings/get",
        "cluster:admin/xpack/watcher/settings/update",
        "cluster:admin/xpack/watcher/watch/put",
        "cluster:internal/remote_cluster/nodes",
        "cluster:internal/xpack/ml/datafeed/isolate",
        "cluster:internal/xpack/ml/datafeed/running_state",
        "cluster:internal/xpack/ml/inference/infer",
        "cluster:internal/xpack/ml/job/finalize_job_execution",
        "cluster:internal/xpack/ml/job/kill/process",
        "cluster:internal/xpack/ml/job/update/process",
        "cluster:internal/xpack/ml/model_allocation/create",
        "cluster:internal/xpack/ml/model_allocation/delete",
        "cluster:internal/xpack/ml/model_allocation/update",
        "cluster:internal/xpack/ml/notification",
        "cluster:internal/xpack/ml/reset_mode",