Is your feature request related to a problem? Please describe.
My linter (popeyecli.io) is reporting no readinessProbe is defined for the Deployment external-secrets

Describe the solution you'd like
Have a readinessProbe for the Deployment external-secrets.

Describe alternatives you've considered
Ignoring the linter.

Additional context
If the existing livenessProbe is sufficient for this task, I'm willing to write up a patch to just use that once #5775 is merged.