Improve ArgoCD source plugin after dog-fooding

[pkosiec]

Description

Based on our dog fooding figure out the scope of ArgoCD plugin improvements. Confirm the scope inside the team.

Ideas

• Add ArgoCD executor which is a ArgoCD CLI wrapped, which makes able to e.g. force resync the app

• support commands like:
  - logs
  - describe app Already there
  - force re-sync
  - other:
  - GitHub diff link URL
  - restart pods kubectl command
  - Argo UI URL (?) Already there

• validate request body in a generic way (in incoming webhook handler based on JSON schema)

• useful filters to ignore spammy/not relevant events
  Notes:
  - https://argoproj.github.io/argo-events/sensors/filters/intro/
  - https://github.com/argoproj/argo-events/tree/master/examples/sensors

• work on the message format to make it more user-friendly

  • if possible in the notification, include :
    • what version was is being deployed (v1.2.0 -> v1.2.1)
    • commit Author
    • GitHub diff link, e.g. main...b954115

• fix Typo in Application botkube-cloud-backend has ben successfully synced

Blocked by #1239

[josefkarasek]

Summary from dogfooding in original issue.