Don't await plugins

docs/runtime/plugins.md

@@ -61,7 +61,7 @@ Plugins are primarily used to extend Bun with loaders for additional file types.
 ```ts#yamlPlugin.ts
 import { plugin } from "bun";
 
-await plugin({
+plugin({
   name: "YAML",
   async setup(build) {
     const { load } = await import("js-yaml");

test/js/third_party/svelte/bun-loader-svelte.ts

@@ -1,6 +1,6 @@
 import { plugin } from "bun";
 
-await plugin({
+plugin({
   name: "svelte loader",
   async setup(builder) {
     var { compile } = await import("svelte/compiler");