Fix GoReleaser using wrong tag for concurrent releases

[gtrrz-victor]

Summary

• Resolve the release tag once as workflow env.RELEASE_TAG (manual workflow_dispatch version input or github.ref_name on tag push) so checkout, GoReleaser, and failure notifications all use the same value
• Set GORELEASER_CURRENT_TAG to ${{ env.RELEASE_TAG }} so GoReleaser does not auto-detect the wrong tag when nightly and stable releases are created from the same commit
• Support workflow_dispatch with a required version input for manual releases

Test plan

• Push a nightly and stable tag on the same commit and verify each release uses the correct version
• Run the workflow manually with version set to an existing tag and confirm checkout and artifacts match that tag

🤖 Generated with Claude Code

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Note

Medium Risk
Touches the release pipeline by overriding GoReleaser tag detection, which could impact versioning/published artifacts if misconfigured, but the change is small and isolated to CI.

Overview
Ensures concurrent tag-based releases (e.g., nightly and stable from the same commit) use the intended version by explicitly setting GORELEASER_CURRENT_TAG to github.ref_name in the GitHub Actions release.yml GoReleaser step.

^{Reviewed by Cursor Bugbot for commit 6394501. Configure here.}

[Copilot]

Pull request overview

Ensures GoReleaser uses the correct tag when multiple tags (e.g., nightly and stable) point to the same commit, preventing version mix-ups during concurrent releases.

Changes:

• Sets GORELEASER_CURRENT_TAG to ${{ github.ref_name }} in the release workflow to override GoReleaser’s tag auto-detection.

[gtrrz-victor]

Added workflow_dispatch support with a version input for manual releases. Unified all tag references through a RELEASE_TAG job-level env var that resolves correctly for both push and manual dispatch triggers. Slack failure notifications also updated.

[pjbgf]

In the future we could add some validation - if the tag does not align with a given pattern it stops early.

I think we have some sort of validation on the script, but it would be good a fail safe earlier.