fix(deps): update typescript-eslint monorepo to ^6.21.0

Author: renovate[bot]

eslint-plugin-sonar/package.json

@@ -32,14 +32,14 @@
   ],
   "peerDependencies": {
     "@babel/core": "^7.11.0",
-    "@typescript-eslint/parser": "^6.0.0",
+    "@typescript-eslint/parser": "^6.21.0",
     "eslint": "^8.0.0",
     "typescript": "^4.0.0 || ^5.0.0"
   },
   "dependencies": {
     "@babel/eslint-parser": "^7.24.5",
     "@eslint-community/regexpp": "^4.10.0",
-    "@typescript-eslint/eslint-plugin": "^6.16.0",
+    "@typescript-eslint/eslint-plugin": "^6.21.0",
     "builtin-modules": "^3.3.0",
     "bytes": "^3.1.2",
     "eslint-plugin-jsx-a11y": "^6.8.0",