Add concurrency groups to workflows to cancel superseded runs (#1007)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thomasnordquist <7721625+thomasnordquist@users.noreply.github.com>

.github/workflows/tests.yml

@@ -2,6 +2,10 @@ on:
   pull_request_target: # Use pull_request_target
     branches: [master, beta, release]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: ubuntu-latest