Align Repo Structures and source charts to be consistent

[zachariahmiller]

Describe what should be investigated or refactored

Title says it all. This is an issue in the SWF repo to track issues identified with more specificity in their specific repos.
Add any other context or screenshots about the technical debt here.

Tasks

Beta Give feedback

1. Update mattermost repo to utilize zarf composability to keep the configuration DRY uds-package-mattermost#29
   good first issue tech-debt 💳 +2
   
2. Update sonarqube repo to utilize zarf composability to keep the configuration DRY uds-package-sonarqube#43
   good first issue tech-debt 💳 +2
   
3. Migrate to upstream GitLab chart uds-package-gitlab#16
   tech-debt 💳 +1