Do not cancel in-progress builds on main (#12492)

Signed-off-by: Marek Kubica <[email protected]>

Author: Leonidas-from-XIV

.github/workflows/workflow.yml

@@ -10,7 +10,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 permissions:
   contents: read