Release Builder and OpAMP cannot be restarted

[bogdandrutu]

During the 0.134.1 release, github had a small issue and could not checkout the code, see for example https://github.com/open-telemetry/opentelemetry-collector-releases/actions/runs/17439761963/job/49519387498.

When any error happens, if you try to re-run the job will fail because it tries to re-add the cmd/builder/v0.134.1, see https://github.com/open-telemetry/opentelemetry-collector-releases/actions/runs/17439761963/job/49519515562 which was added in the previous failed run.

Proposal is to make the adding tag first check if the tag exists at the current commit, and if yes to not try to re-add and fail.

[Saraah910]

if git rev-parse "cmd/builder/v0.134.1" >/dev/null 2>&1; then
  echo "Tag cmd/builder/v0.134.1 already exists, skipping."
else
  git tag cmd/builder/v0.134.1
  git push origin cmd/builder/v0.134.1
fi

Should be like this, right?

[songy23]

Ran into this again in v0.136.0 release

1st attempt failed due to 500 Internal Server Error https://github.com/open-telemetry/opentelemetry-collector-releases/actions/runs/17949725523/job/51045348429

2nd attempt failed due to tag already exists http://github.com/open-telemetry/opentelemetry-collector-releases/actions/runs/17949725523/job/51047240774

[songy23]

A workaround for now is to manually delete the tag e.g. cmd/builder then re-run the workflow