Update docs to use most current security settings

[karenzone]

Some configuration examples use outdated security settings, specifically cacert and force-peer. We recently removed old security settings from plugin docs and updated them with replacement settings. The info in those docs will give us a headstart toward fixing outdated configs other places in docs.

Repos to search for outdated configs

• logstash: Doc: Update Logstash security settings logstash#18356
• docs-content: [Ingest] Use current Logstash security settings #4241
• beats: Doc: Use current Logstash SSL settings for beats beats#46866

Related:

• [ElasticAgent] Update Logstash output doc to use most current ssl settings #2682
• Update SSL config settings for logstash output #2683