♻️ Use GitHub concurrency instead of styfle/cancel-workflow-action

Author: homersimpsons

.github/workflows/continuous_integration.yml

@@ -6,6 +6,10 @@ on:
     branches:
       - master
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
 jobs:
 
   continuous-integration:
@@ -25,12 +29,6 @@ jobs:
       fail-fast: false
 
     steps:
-      # Cancel previous runs of the same branch
-      - name: cancel
-        uses: styfle/cancel-workflow-action@0.10.0
-        with:
-          access_token: ${{ github.token }}
-
       - name: "Checkout"
         uses: "actions/checkout@v3"
 
@@ -58,4 +56,4 @@ jobs:
         run: |
           composer update ${{ matrix.install-args }} --no-interaction --no-progress --prefer-dist
       - name: "Run tests with phpunit/phpunit"
-        run: "vendor/bin/phpunit"
+        run: "vendor/bin/phpunit"