Upgrade ArgoCD to 2.14 or 3.0

[megian]

Context

ArgoCD is outdated. "We currently support the last 3 minor versions of Argo CD with security and bug fixes." v3.1 has been released.

ArgoCD Operator need to be upgraded first. Check for breaking changes:

• v0.13.0
• v0.14.0
• v0.15.0-1

Check for breaking changes in ArgoCD:

• v2.13 to 2.14
• v2.14 to 3.0

Alternatives

N/A

[simu]

ArgoCD Operator need to be upgraded first. Check for breaking changes

Not true, we can easily update ArgoCD to v2.14 without updating the operator.

[simu]

For v3, we need #249 for sure

[simu]

Updated to ArgoCD v2.14.20: https://github.com/projectsyn/component-argocd/releases/tag/v8.16.0