vscode: Update eslint

Author: georgestagg

ggsql-vscode/eslint.config.mjs

@@ -0,0 +1,22 @@
+import { defineConfig } from "eslint/config";
+import tseslint from "@typescript-eslint/eslint-plugin";
+import tsparser from "@typescript-eslint/parser";
+
+export default defineConfig([
+	{
+		files: ["src/**/*.ts"],
+		languageOptions: {
+			parser: tsparser,
+			parserOptions: {
+				projectService: true,
+			},
+		},
+		plugins: {
+			"@typescript-eslint": tseslint,
+		},
+		rules: {
+			semi: "error",
+			"prefer-const": "error",
+		},
+	},
+]);