Update test environment to fix tests on legacy PHP 7.2 with PHPUnit 8.5

Author: clue

.github/workflows/ci.yml

@@ -42,7 +42,4 @@ jobs:
       - run: composer install
       - run: sudo /etc/init.d/asterisk status || sudo /etc/init.d/asterisk start
       - run: sudo /etc/init.d/asterisk status || sleep 2
-      - run: vendor/bin/phpunit --coverage-text
-        if: ${{ matrix.php >= 7.3 }}
-      - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
-        if: ${{ matrix.php < 7.3 }}
+      - run: vendor/bin/phpunit --coverage-text ${{ matrix.php < 7.3 && '-c phpunit.xml.legacy' || '' }}

composer.json

@@ -18,7 +18,7 @@
         "react/socket": "^1.17"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36",
+        "phpunit/phpunit": "^9.6 || ^8.5 || ^5.7 || ^4.8.36",
         "react/async": "^4.3 || ^3.2 || ^2.2"
     },
     "autoload": {