Add explicit groupping for canceling but disable canceling for now

want to troubleshoot what is not good with jobs first

Author: yarikoptic

.github/workflows/tests.yaml

@@ -3,6 +3,10 @@ name: tests
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref_name }}
+  cancel-in-progress: false  # TEMP: change later to True
+
 jobs:
   build: