chore(deps): update typescript-eslint monorepo to v8

Author: renovate[bot]

lib/package.json

@@ -37,8 +37,8 @@
     "@lit/localize-tools": "^0.8.0",
     "@open-wc/eslint-config": "^12.0.3",
     "@protobuf-ts/plugin": "^2.9.4",
-    "@typescript-eslint/eslint-plugin": "^7.15.0",
-    "@typescript-eslint/parser": "^7.15.0",
+    "@typescript-eslint/eslint-plugin": "^8.0.0",
+    "@typescript-eslint/parser": "^8.0.0",
     "concurrently": "^9.0.0",
     "esbuild": "^0.25.0",
     "eslint": "^9.0.0",