Add new cs check for composer.json

Author: deguif

.github/workflows/continuous-integration.yaml

@@ -1,9 +1,9 @@
 name: 'Continuous integration'
 on: ['push', 'pull_request']
 jobs:
-  php-cs:
+  cs:
     runs-on: 'ubuntu-latest'
-    name: 'PHP coding style'
+    name: 'Coding style'
     steps:
       - name: 'Checkout'
         uses: 'actions/checkout@v2'
@@ -12,10 +12,19 @@ jobs:
         uses: 'shivammathur/setup-php@v2'
         with:
           php-version: '7.4'
+          coverage: 'none'
           extensions: 'json, mbstring, tokenizer'
-          tools: 'cs2pr, php-cs-fixer:2.16.4'
+          tools: 'composer-normalize, php-cs-fixer:2.16.4'
         env:
           update: true
 
-      - name: 'Check coding style'
-        run: 'php-cs-fixer fix --diff --dry-run --using-cache=false --format=checkstyle | cs2pr'
+      - name: 'Display tools versions'
+        run: |
+          composer-normalize --version
+          php-cs-fixer --version
+
+      - name: 'Check PHP code'
+        run: 'php-cs-fixer fix --diff --dry-run --using-cache=false'
+
+      - name: 'Check composer.json'
+        run: 'composer-normalize --diff --dry-run --no-update-lock'