chore: try vendor + parallel (#3628)

Author: marvinhagemeister

deno.json

@@ -1,4 +1,5 @@
 {
+  "vendor": true,
   "nodeModulesDir": "manual",
   "workspace": [
     "./packages/*",
@@ -8,7 +9,7 @@
     "demo": "deno task --cwd=packages/plugin-vite demo",
     "demo:build": "deno task --cwd=packages/plugin-vite demo:build",
     "demo:start": "deno task --cwd=packages/plugin-vite demo:start",
-    "test": "deno test -A",
+    "test": "deno test -A --parallel",
     "www": "deno task --cwd=www dev",
     "build-www": "deno task --cwd=www build",
     "screenshot": "deno run -A www/utils/screenshot.ts",