Remove tests on lowest versions

.github/workflows/tests.yml

@@ -4,18 +4,15 @@ on: [push, pull_request]
 
 jobs:
   tests:
-    name: Symfony ${{ matrix.symfony-version }} on PHP ${{ matrix.php-version }} flags ${{ matrix.composer-flags }}
+    name: Symfony ${{ matrix.symfony-version }} on PHP ${{ matrix.php-version }}
     runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false
       matrix:
         php-version: ['7.2', '7.3', '7.4', '8.0']
-        composer-flags: ['']
         symfony-version: ['']
         include:
-          - php-version: 7.2
-            composer-flags: "--prefer-lowest"
           - php-version: 7.2
             symfony-version: "^4.4"
           - php-version: 7.3
@@ -70,14 +67,8 @@ jobs:
         run: composer require --no-update symfony/framework-bundle=${{ matrix.symfony-version }}
 
       - name: Install Composer dependencies
-        if: matrix.composer-flags == ''
         run: composer install
 
-      - name: Install Composer dependencies with options
-        if: matrix.composer-flags != ''
-        # Use "update" instead of "install" since it allows using the "--prefer-lowest" option
-        run: composer update ${{ matrix.composer-flags }}
-
       - name: Run tests
         # In phpunit.xml.dist, tests annotated with "@group mysql" are excluded, revert this
         # Run tests twice to ensure that tests are idempotent even if database caching is enabled