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:monitor/text_structure/findstructure",
        "cluster:monitor/transform/get",
        "cluster:monitor/transform/stats/get",
        "cluster:monitor/xpack/analytics/stats",
        "cluster:monitor/xpack/enrich/coordinator_stats",
        "cluster:monitor/xpack/enrich/stats",
        "cluster:monitor/xpack/eql/stats/dist",
        "cluster:monitor/xpack/esql/stats/dist",
        "cluster:monitor/xpack/info",
        "cluster:monitor/xpack/info/aggregate_metric",
        "cluster:monitor/xpack/info/analytics",
        "cluster:monitor/xpack/info/archive",
        "cluster:monitor/xpack/info/ccr",
        "cluster:monitor/xpack/info/data_streams",
        "cluster:monitor/xpack/info/data_tiers",
        "cluster:monitor/xpack/info/enrich",
        "cluster:monitor/xpack/info/enterprise_search",
        "cluster:monitor/xpack/info/eql",
        "cluster:monitor/xpack/info/esql",
        "cluster:monitor/xpack/info/frozen_indices",
        "cluster:monitor/xpack/info/graph",
        "cluster:monitor/xpack/info/ilm",
        "cluster:monitor/xpack/info/logstash",
        "cluster:monitor/xpack/info/ml",
        "cluster:monitor/xpack/info/monitoring",
        "cluster:monitor/xpack/info/rollup",
        "cluster:monitor/xpack/info/searchable_snapshots",
        "cluster:monitor/xpack/info/security",
        "cluster:monitor/xpack/info/slm",
        "cluster:monitor/xpack/info/spatial",