⬆️(dependency) upgrade eslint to v9

We upgraded ESLint to version 9 in the
eslint-config-impress package.
We rename it to eslint-plugin-docs.

src/frontend/apps/e2e/package.json

@@ -15,7 +15,7 @@
     "@playwright/test": "1.55.0",
     "@types/node": "*",
     "@types/pdf-parse": "1.1.5",
-    "eslint-config-impress": "*",
+    "eslint-plugin-docs": "*",
     "typescript": "*"
   },
   "dependencies": {

src/frontend/apps/impress/package.json

@@ -76,7 +76,7 @@
     "@vitejs/plugin-react": "5.0.2",
     "cross-env": "10.0.0",
     "dotenv": "17.2.1",
-    "eslint-config-impress": "*",
+    "eslint-plugin-docs": "*",
     "fetch-mock": "9.11.0",
     "jsdom": "26.1.0",
     "node-fetch": "2.7.0",