ci: skip incompatible stubs based on PHP version lookup

- Define minimum PHP version per stub (e.g. PHPUnit v12 needs PHP >=8.3)
- Skip composer install for stubs incompatible with matrix PHP version
- Use composer install (lock file) instead of composer update
- Use sort -V for correct version ordering (v9, v10, v11, v12)

Author: recca0120

.github/workflows/tests.yml

@@ -63,18 +63,36 @@ jobs:
 
       - name: Install Composer dependencies (PHPUnit stubs)
         run: |
+          # PHPUnit minimum PHP version lookup
+          declare -A MIN_PHP=([v9]=7.3 [v10]=8.1 [v11]=8.2 [v12]=8.3)
+          PHP=${{ matrix.php }}
           for dir in $(ls -d ${{ env.PHPUNIT_PROJECT }}/v*/ | sort -V); do
-            echo "::group::Installing $(basename "$dir")"
-            (cd "$dir" && composer install --prefer-dist --no-interaction --no-progress --ignore-platform-reqs) || true
-            echo "::endgroup::"
+            stub=$(basename "$dir")
+            min=${MIN_PHP[$stub]:-99}
+            if php -r "exit(version_compare('$PHP','$min','>=') ? 0 : 1);"; then
+              echo "::group::Installing $stub (PHP >= $min)"
+              (cd "$dir" && composer install --prefer-dist --no-interaction --no-progress) || true
+              echo "::endgroup::"
+            else
+              echo "Skipping $stub (requires PHP >= $min, have $PHP)"
+            fi
           done
 
       - name: Install Composer dependencies (Pest stubs)
         run: |
+          # Pest minimum PHP version lookup
+          declare -A MIN_PHP=([v2]=8.2 [v3]=8.2 [v4]=8.3)
+          PHP=${{ matrix.php }}
           for dir in $(ls -d ${{ env.PEST_PROJECT }}/v*/ | sort -V); do
-            echo "::group::Installing $(basename "$dir")"
-            (cd "$dir" && composer install --prefer-dist --no-interaction --no-progress --ignore-platform-reqs) || true
-            echo "::endgroup::"
+            stub=$(basename "$dir")
+            min=${MIN_PHP[$stub]:-99}
+            if php -r "exit(version_compare('$PHP','$min','>=') ? 0 : 1);"; then
+              echo "::group::Installing $stub (PHP >= $min)"
+              (cd "$dir" && composer install --prefer-dist --no-interaction --no-progress) || true
+              echo "::endgroup::"
+            else
+              echo "Skipping $stub (requires PHP >= $min, have $PHP)"
+            fi
           done
 
       - name: Install Dependencies