Add support for rotation in secret sync controller

[jainsuyogj]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Support for rotation feature in controller

Which issue(s) this PR fixes (optional, using fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when the PR gets merged):
Fixes #6

• squashed commits
• includes documentation
• adds unit tests

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jainsuyogj
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[k8s-ci-robot]

This issue is currently awaiting triage.

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[k8s-ci-robot]

Hi @jainsuyogj. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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/lifecycle stale

[aramase]

/remove-lifecycle stale
/lifecycle frozen

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