refactor: remove symfony from composer.json

Author: elliotcleary-wpe

composer.json

@@ -17,15 +17,14 @@
   ],
   "require-dev": {
     "phpunit/phpunit": "^7",
-    "yoast/phpunit-polyfills": "^1.1",
+    "yoast/phpunit-polyfills": "^1.0",
     "php-parallel-lint/php-parallel-lint": "^1.3.2",
     "phpcompatibility/phpcompatibility-wp": "^2.1.3",
     "dealerdirect/phpcodesniffer-composer-installer": "^0.7.2",
     "squizlabs/php_codesniffer": "^3.6.0",
     "wp-coding-standards/wpcs": "^2.3.0",
     "wp-graphql/wp-graphql": "^1.8",
-    "spatie/phpunit-watcher": "^1.23",
-    "symfony/process": "5.4.51"
+    "spatie/phpunit-watcher": "^1.23"
   },
   "scripts": {
     "phpunit": "vendor/bin/phpunit",