Originally posted on Github: https://github.com/k-orc/openstack-resource-controller/issues/440

Problem description
The mechanism we use to track backwards-compatibility (the workflow that applies the semver labels to PRs) only checks that the Go code is backwards-compatible.
However, in this repository the API is also very much defined in comments: that's where Kubebuilder sources its instructions for validation. If in the validation of a number we stopped accepting anything greater then 4, then this would represent a backwards-incompatible change but the label would say semver:patch.
Something similar happened with the PR that added mutability to Subnet: it was tagged as semver:patch even though it definitely expanded the API of our controller.
Down the line, the semver check should also incorporate a check of the validation... once a tool for that exists.
ORC version
main
Additional information
No response
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