chore(deps): bump to eslint9+ and remove eslint-config-google (#1591)

* chore(deps): remove eslint-google as not supported by eslint9

* fix: actually remove eslint-config-google

.eslintrc.json

@@ -1,23 +0,0 @@
-{
-    "env": {
-        "browser": true,
-        "commonjs": true,
-        "es2021": true
-    },
-    "extends": [
-        "google",
-        "eslint:recommended",
-        "plugin:@typescript-eslint/recommended"
-    ],
-    "parser": "@typescript-eslint/parser",
-    "parserOptions": {
-        "ecmaVersion": 12
-    },
-    "plugins": [
-        "@typescript-eslint"
-    ],
-    "rules": {
-        "max-len": ["error", { "code": 120 }],
-        "linebreak-style": 0
-    }
-}

eslint.config.mjs

@@ -0,0 +1,43 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [
+    ...compat.extends("eslint:recommended", "plugin:@typescript-eslint/recommended"),
+    {
+        plugins: {
+            "@typescript-eslint": typescriptEslint,
+        },
+
+        languageOptions: {
+            globals: {
+                ...globals.browser,
+                ...globals.commonjs,
+            },
+
+            parser: tsParser,
+            ecmaVersion: 12,
+            sourceType: "script",
+        },
+
+        rules: {
+            "max-len": ["error", {
+                code: 120,
+            }],
+
+            "linebreak-style": 0,
+        },
+    },
+];

package.json

@@ -34,8 +34,7 @@
     "@typescript-eslint/eslint-plugin": "^8.8.0",
     "@typescript-eslint/parser": "^8.8.0",
     "@vercel/ncc": "^0.38.2",
-    "eslint": "^8.57.1",
-    "eslint-config-google": "^0.14.0",
+    "eslint": "^9.11.1",
     "jest": "^29.7.0",
     "jest-junit": "^16.0.0",
     "ts-jest": "^29.2.5",