Issue checklist

Discussion: https://discord.com/channels/796665978481803304/1463911019272339607/1466094766784774155

Users cannot add CAs to git sync commands by means of managed fields.
The documentation is slightly confusing because the examples use a /tmp/ca-cert folder without mentioning where it is supposed to come from.
I thought it comes from customComponentsGitsync.[*].credentialsSecret but this is not the case.

The work-around is to :

1. Add a new spec.clusterConfig.extraVolumes entry that points to a secret/configmap with the CA.
2. Add pod overrides to mount that volume in the init container for git sync.
3. Same as above for the main container.

This overly complicated, hard to maintain and exposes too much product internals.

• feat: Git sync - add first class support for CAs airflow-operator#750
• feat: Git sync - add first class support for CAs operator-rs#1154
• feat: Git sync - add first class support for CAs nifi-operator#903