Update eslint monorepo to v9.31.0 (#181)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "zod": "3.25.76"
   },
   "devDependencies": {
-    "@eslint/js": "9.29.0",
+    "@eslint/js": "9.31.0",
     "@tsconfig/node18": "18.2.4",
     "@tsconfig/strictest": "2.0.5",
     "@types/common-tags": "1.8.4",
@@ -47,7 +47,7 @@
     "@vitest/coverage-v8": "2.1.8",
     "common-tags": "1.8.2",
     "esbuild": "0.25.2",
-    "eslint": "9.29.0",
+    "eslint": "9.31.0",
     "nodemon": "3.1.10",
     "prettier": "3.6.2",
     "supertest": "7.1.3",