Fix version number for releases

Author: agners

.github/workflows/build.yaml

@@ -31,7 +31,7 @@ jobs:
                   commit_count="$(git rev-list --count --since=$midnight_timestamp HEAD)"
                   commit_count="$(printf "%02d" ${commit_count})"
                   version="${calver_date}${commit_count}"
-                else
+                elif [[ "${{ github.ref }}" =~ ^refs/heads/ ]]; then
                   today="$(date --utc '+%Y-%m-%d')"
                   midnight_timestamp="$(date --utc +%s --date=$today)"
                   calver_date="$(date --utc --date=$today '+%Y.%-m.dev%-d')"