🐛 Release Tooling: Version calculation script should only use annotated tags

[ykakarap]

What this PR does / why we need it:
The version calculation script should limit to using only annotated tags. This help with the release automation not picking up tags like test/v0.4.3 which causes issues with release scripts.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #5268

[vincepri]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vincepri

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[vincepri]

/cherrypick release-0.4

[k8s-infra-cherrypick-robot]

@vincepri: once the present PR merges, I will cherry-pick it on top of release-0.4 in a new PR and assign it to you.

In response to this:

/cherrypick release-0.4

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[k8s-infra-cherrypick-robot]

@vincepri: new pull request created: #5272

In response to this:

/cherrypick release-0.4

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