add support for annotations for the source and kustomize controller deployments

[suryapandian]

What this PR does / why we need it:

This PR adds the ability to add deployment annotaiton to the deployments of kustomize and source controller.

Special notes for your reviewer:

Checklist

• [x] DCO signed
• [x] Chart Version bumped
• [x] helm-docs are updated
• [x] Helm chart is tested
• [x] Update artifacthub.io/changes in Chart.yaml
• [x] Run make reviewable