Cancel previous tests when pushing to PRs

Author: jacobtylerwalls

.github/workflows/codeql-analysis.yml

@@ -23,6 +23,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   analyze:
     name: Analyze

.github/workflows/tests.yaml

@@ -19,6 +19,10 @@ env:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   tests-linux:
     name: run / ${{ matrix.python-version }} / Linux