fix(ci): commit message passed in via env var

.github/workflows/ci.yml

@@ -27,8 +27,9 @@ jobs:
     steps:
       - name: Extract version from commit message
         id: extract
+        env:
+          COMMIT_MSG: ${{ github.event.head_commit.message }}
         run: |
-          COMMIT_MSG="${{ github.event.head_commit.message }}"
           # Only tag versions on main branch
           if [ "${{ github.ref }}" = "refs/heads/main" ] && [[ "$COMMIT_MSG" =~ ^(v[0-9]+\.[0-9]+\.[0-9]+): ]]; then
             VERSION="${BASH_REMATCH[1]}"