Refactor CI configuration: update PHP version to 7.3, streamline step…

.github/workflows/ci.yml

@@ -1,27 +1,24 @@
-name: PHPUnit
+name: CI
 
-on: [push, pull_request]
+on: [pull_request]
 
 jobs:
-  build:
-    name: Run tests on ${{ matrix.php }}
+  test:
+    name: Run tests
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
-
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: ${{ matrix.php }}
+          php-version: '7.3'
+          tools: phpunit
 
-      - name: Composer Install
-        run: composer install
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
 
-      - name: Run Tests
-        run: vendor/bin/phpunit
+      - name: Run tests
+        run: phpunit