Upgrade to eslint 9

dist/index.js

@@ -85429,7 +85429,6 @@ Object.defineProperty(exports, "__esModule", ({ value: true }));
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 const main_1 = __nccwpck_require__(1730);
-// eslint-disable-next-line @typescript-eslint/no-floating-promises
 (0, main_1.run)();
 
 })();

eslint.config.mjs

@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+// @ts-check
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+import pluginJest from 'eslint-plugin-jest';
+import notice from "eslint-plugin-notice";
+import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
+
+export default tseslint.config({
+  files: ["src/**/*.ts", "test/**/*.ts", "test-live/**/*.ts"],
+  extends: [eslint.configs.recommended, ...tseslint.configs.recommended],
+  ...pluginJest.configs['flat/recommended'],
+  ...eslintPluginPrettierRecommended,
+  languageOptions: {
+    ecmaVersion: 2020,
+  },
+  plugins: { notice },
+  rules: {
+    "notice/notice": [
+      "error",
+      {
+        template: "// Copyright (c) Microsoft Corporation.\n// Licensed under the MIT License.\n",
+      },
+    ],
+  },
+});