[.github/shared] Align eslint with .github

- Forgot to update "shared" in last two updates

.github/eslint.config.js

@@ -1,3 +1,5 @@
+// Keep in sync with .github/shared/eslint.config.js
+
 import eslint from "@eslint/js";
 import { defineConfig } from "eslint/config";
 import globals from "globals";

.github/shared/eslint.config.js

@@ -1,5 +1,11 @@
-import pluginJs from "@eslint/js";
+// Keep in sync with .github/eslint.config.js
+
+import eslint from "@eslint/js";
+import { defineConfig } from "eslint/config";
 import globals from "globals";
+import tseslint from "typescript-eslint";
 
 /** @type {import('eslint').Linter.Config[]} */
-export default [{ languageOptions: { globals: globals.node } }, pluginJs.configs.recommended];
+export default defineConfig(eslint.configs.recommended, tseslint.configs.recommended, {
+  languageOptions: { globals: globals.node },
+});