chore: pin eslint-plugin

Author: Marsup

package.json

@@ -24,7 +24,7 @@
   },
   "devDependencies": {
     "@hapi/code": "^9.0.0",
-    "@hapi/eslint-plugin": "*",
+    "@hapi/eslint-plugin": "^6.0.0",
     "@hapi/lab": "^25.0.1"
   },
   "scripts": {