Replace whitelist in high_availability/ dir

https://gitlab.com/groups/gitlab-org/-/epics/3478

doc/administration/high_availability/gitlab.md

@@ -170,7 +170,7 @@ If you enable Monitoring, it must be enabled on **all** GitLab servers.
    sidekiq['listen_address'] = "0.0.0.0"
    puma['listen'] = '0.0.0.0'
 
-   # Add the monitoring node's IP address to the monitoring whitelist and allow it to
+   # Add the monitoring node's IP address to the monitoring list that allows it to
    # scrape the NGINX metrics. Replace placeholder `monitoring.gitlab.example.com` with
    # the address and/or subnets gathered from the monitoring node(s).
    gitlab_rails['monitoring_whitelist'] = ['monitoring.gitlab.example.com', '127.0.0.0/8']

doc/administration/high_availability/sidekiq.md

@@ -66,7 +66,7 @@ you want using steps 1 and 2 from the GitLab downloads page.
    gitlab_rails['auto_migrate'] = false
    ```
 
-   Remember to add the Sidekiq nodes to the PostgreSQL whitelist:
+   Remember to add the Sidekiq nodes to PostgreSQL's trusted addresses:
 
    ```ruby
    postgresql['trust_auth_cidr_addresses'] = %w(127.0.0.1/32 10.10.1.30/32 10.10.1.31/32 10.10.1.32/32 10.10.1.33/32 10.10.1.38/32)