cancel in-progress runs in prs

.github/workflows/ansible-lint.yaml

@@ -1,6 +1,13 @@
 name: ansible-lint
+
 on: [push, pull_request]
 
+# Cancel in progress workflows on pull_requests.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   # In order to be able to have required checks, a workflow can't be entirely
   # skipped: see https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks

.github/workflows/backend-lint.yaml

@@ -2,6 +2,12 @@ name: Backend Lint + Type Check
 
 on: [push, pull_request]
 
+# Cancel in progress workflows on pull_requests.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   # In order to be able to have required checks, a workflow can't be entirely
   # skipped: see https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks

.github/workflows/frontend-lint-test-build.yaml

@@ -2,6 +2,12 @@ name: Frontend
 on:
   pull_request
 
+# Cancel in progress workflows on pull_requests.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   # In order to be able to have required checks, a workflow can't be entirely
   # skipped: see https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks

.github/workflows/k3d-ci.yaml

@@ -2,6 +2,12 @@ name: Cluster Run (K3d)
 
 on: [push, pull_request]
 
+# Cancel in progress workflows on pull_requests.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   ECHO_SERVER_HOST_URL: http://host.k3d.internal:18080