Update dependencies

eslint.config.mjs

@@ -0,0 +1,18 @@
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+import prettier from "eslint-config-prettier";
+import { includeIgnoreFile } from "@eslint/compat";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+// @ts-expect-error ESM compat error
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const gitignorePath = path.resolve(__dirname, ".gitignore");
+
+export default tseslint.config(
+  includeIgnoreFile(gitignorePath),
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  prettier,
+);

package.json

@@ -23,8 +23,8 @@
     "build": "rimraf dist && tsc -p tsconfig.build.json",
     "format": "prettier -w .",
     "format:check": "prettier -c .",
-    "lint": "eslint --ignore-path .gitignore --max-warnings 0 .",
-    "lint:fix": "pnpm run lint -- --fix",
+    "lint": "eslint --max-warnings 0 .",
+    "lint:fix": "pnpm run lint --fix",
     "prepublishOnly": "pnpm run build",
     "test": "nyc -r=lcov -r=text node --trace-warnings -r ts-node/register --test \"**/*.test.ts\"",
     "typecheck": "tsc"
@@ -37,19 +37,22 @@
     "jest-diff": "^29.7.0"
   },
   "devDependencies": {
+    "@eslint/compat": "^1.1.1",
+    "@eslint/js": "^9.9.1",
     "@types/body-parser": "^1.19.5",
     "@types/deep-equal": "^1.0.4",
-    "@typescript-eslint/eslint-plugin": "^7.7.0",
-    "@typescript-eslint/parser": "^7.7.0",
-    "eslint": "^8.57.0",
+    "@types/eslint-config-prettier": "^6.11.3",
+    "@types/eslint__js": "^8.42.3",
+    "eslint": "^9.9.1",
     "eslint-config-prettier": "^9.1.0",
     "get-port-please": "^3.1.2",
-    "node-mocks-http": "^1.14.1",
-    "nyc": "^15.1.0",
-    "prettier": "^3.2.5",
-    "rimraf": "^5.0.5",
+    "node-mocks-http": "^1.15.1",
+    "nyc": "^17.0.0",
+    "prettier": "^3.3.3",
+    "rimraf": "^5.0.10",
     "ts-node": "^10.9.2",
-    "typescript": "^5.4.5"
+    "typescript": "^5.5.4",
+    "typescript-eslint": "^8.2.0"
   },
   "packageManager": "[email protected]"
 }