Enhances test workflow for dev Symfony versions

Updates the test workflow to correctly handle "-dev" Symfony versions.

Sets the composer minimum-stability to "dev" and prefers stable dependencies
when testing against development versions of Symfony. This ensures that the
latest dependencies are used during testing of development versions and also
runs update with --prefer-lowest only when not on a dev branch.

.github/workflows/tests.yaml

@@ -96,8 +96,8 @@ jobs:
             fail-fast: false
             matrix:
                 include:
-                    - { symfony: 8.0.*, php: 8.4, phpunit: 10.5.* }
-                    - { symfony: 7.4.*, php: 8.2, phpunit: 10.5.* }
+                    - { symfony: 8.0.x-dev, php: 8.4, phpunit: 10.5.* }
+                    - { symfony: 7.4.x-dev, php: 8.2, phpunit: 10.5.* }
                     - { symfony: 7.3.*, php: 8.5, phpunit: 10.5.* }
                     - { symfony: 7.3.*, php: 8.4, phpunit: 10.5.* }
                     - { symfony: 7.3.*, php: 8.3, phpunit: 10.5.* }
@@ -130,8 +130,22 @@ jobs:
                     sed -i '/"require": {/,/},/d; /"require-dev": {/,/},/d' composer.json
                     composer config --global allow-plugins true
                     composer config extra.symfony.require "${{ matrix.symfony }}"
+
+                    if [[ "${{ matrix.symfony }}" == *"-dev"* ]]; then
+                        echo "Setting minimum-stability to dev for ${{ matrix.symfony }}"
+                        composer config minimum-stability "dev"
+                        composer config prefer-stable true
+                    fi
+
                     composer require "symfony/config:${{ matrix.symfony }}" "symfony/console:${{ matrix.symfony }}" "symfony/dependency-injection:${{ matrix.symfony }}" "symfony/framework-bundle:${{ matrix.symfony }}" "symfony/http-kernel:${{ matrix.symfony }}" "symfony/translation:${{ matrix.symfony }}" "symfony/twig-bundle:${{ matrix.symfony }}" "phpunit/phpunit:${{ matrix.phpunit }}" "mockery/mockery" "psr/container" "monolog/monolog" --no-interaction --no-update
-                    composer update --prefer-lowest -W --no-interaction --prefer-dist --optimize-autoloader
+
+                    if [[ "${{ matrix.symfony }}" == *"-dev"* ]]; then
+                        echo "Running composer update (latest dependencies)"
+                        composer update -W --no-interaction --prefer-dist --optimize-autoloader
+                    else
+                        echo "Running composer update --prefer-lowest"
+                        composer update --prefer-lowest -W --no-interaction --prefer-dist --optimize-autoloader
+                    fi
 
             -   name: ✅ Execute tests
                 run: vendor/bin/phpunit --testsuite symfony