[Issue]: logstash health report guidance not split in main

### Type of issue

None

### What documentation page is affected

https://www.elastic.co/docs/troubleshoot/ingest/logstash/health-report-pipelines

### What happened?

In Logstash, when a health report probe detects a degraded or at-risk state, the diagnosis links to a probe-specific _page_ anchored to the meaning of the specific diagnosis.

- https://www.elastic.co/guide/en/logstash/8.18/health-report-pipeline-flow-worker-utilization.html#blocked-1m

When the 9.0 version of this page is accessed, it gets re-routed to a single page that holds _all_ of the probes, and the anchor no longer works to direct the user to the meaningful bit:

- input: https://www.elastic.co/guide/en/logstash/9.0/health-report-pipeline-flow-worker-utilization.html#blocked-1m
- destination: https://www.elastic.co/docs/troubleshoot/ingest/logstash/health-report-pipelines#blocked-1m

### Additional info

_No response_