skip version detection if not on main

Author: FynnBe

.github/workflows/build.yml

@@ -194,7 +194,7 @@ jobs:
 
       - name: Detect new version
         id: check-version
-        if: steps.check-parent-commit.outputs.sha
+        if: github.ref == 'refs/heads/main' && steps.check-parent-commit.outputs.sha
         uses: salsify/[email protected]
         with:
           create-tag: false