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/monitoring/bulk",
        "cluster:admin/xpack/monitoring/migrate/alerts",
        "cluster:admin/xpack/query_rules/delete",
        "cluster:admin/xpack/query_rules/get",
        "cluster:admin/xpack/query_rules/list",
        "cluster:admin/xpack/query_rules/put",
        "cluster:admin/xpack/rollup/delete",
        "cluster:admin/xpack/rollup/put",
        "cluster:admin/xpack/rollup/start",
        "cluster:admin/xpack/rollup/stop",
        "cluster:admin/xpack/searchable_snapshots/cache/clear",
        "cluster:admin/xpack/searchable_snapshots/cache/stats",
        "cluster:admin/xpack/security/api_key/create",
        "cluster:admin/xpack/security/api_key/get",
        "cluster:admin/xpack/security/api_key/grant",
        "cluster:admin/xpack/security/api_key/invalidate",
        "cluster:admin/xpack/security/api_key/query",
        "cluster:admin/xpack/security/api_key/update",
        "cluster:admin/xpack/security/api_key/bulk_update",
        "cluster:admin/xpack/security/cache/clear",
        "cluster:admin/xpack/security/cross_cluster/api_key/create",
        "cluster:admin/xpack/security/cross_cluster/api_key/update",
        "cluster:admin/xpack/security/delegate_pki",
        "cluster:admin/xpack/security/enroll/node",
        "cluster:admin/xpack/security/enroll/kibana",
        "cluster:admin/xpack/security/oidc/authenticate",
        "cluster:admin/xpack/security/oidc/logout",
        "cluster:admin/xpack/security/oidc/prepare",
        "cluster:admin/xpack/security/privilege/builtin/get",
        "cluster:admin/xpack/security/privilege/cache/clear",