[ArgoCD-Next] Connect GH repo to ArgoCD in next clusters

[hgbarreto]

Description

We need to have the ArgoCD instances automatically connect to our desire GH repos every time a cluster spins up. We would like to use oAuth if possible.

Acceptance Criteria

• [ ] Latest version of ArgoCD
• [ ] Images in private ECR
• [ ] Configuration for clusters happens automatically on cluster build

Refinement Guidance - Check the following before working on this issue:

• [ ] Estimated (points assigned)
• [ ] Sprint assigned (once planned)
• [ ] Team member(s) assigned
• [ ] Understands how this work aligns with the overall platform

[hgbarreto]

Adding to sprint - ArgoCD configuration is central to the next cluster effort