fix: do not create rc_tagged monthly status metric for older versions
We ran a command to tag an older stable version last week like this,
/chatops run release tag 17.0.1-rcxx --gitlab-sha=<sha>
and it ended up creating a rc_tagged
status metric for the delivery_release_monthly_status
metric for 17.1
.
This is because when we create the metric during tagging, we don't confirm if it's for the current version or an older version. This MR should address that bug.