chore: Add linter for no 'only' tests (#3285)

Author: gethinwebster

.eslintrc.js

@@ -24,6 +24,7 @@ module.exports = {
     'no-unsanitized',
     'header',
     'simple-import-sort',
+    'no-only-tests',
   ],
   rules: {
     '@typescript-eslint/no-empty-function': 'off',
@@ -89,6 +90,7 @@ module.exports = {
     ],
     'no-warning-comments': 'warn',
     'simple-import-sort/imports': 'error',
+    'no-only-tests/no-only-tests': 'error',
   },
   settings: {
     react: {

package-lock.json

@@ -94,6 +94,7 @@
     "eslint": "^8.28.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-header": "^3.1.1",
+    "eslint-plugin-no-only-tests": "^3.3.0",
     "eslint-plugin-no-unsanitized": "^4.0.2",
     "eslint-plugin-prettier": "^5.1.3",
     "eslint-plugin-react": "^7.31.11",