feat: support all SemVer 2.0 pre-release identifiers

Replace the RC-only pattern with a generic SemVer 2.0 pre-release
pattern so that tags like -alpha, -beta, -dev or -rc are all correctly
detected as pre-releases. Previously only -rc tags were recognized.

Also configure git user identity before tagging in the auto-release
workflow.

Co-authored-by: Copilot <copilot@github.com>

.gitea/workflows/auto-release.yaml

@@ -64,5 +64,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           new_tag=${{ steps.bump.outputs.new_tag }}
+          git config --local user.name "${GIT_USER}"
+          git config --local user.email "${GIT_EMAIL}"
           git tag -a "${new_tag}" -m "${new_tag}"
           git push origin "${new_tag}"