refactor: move plugins to packages (#28389)

packages/plugins/esbuild.js

@@ -0,0 +1,12 @@
+const esbuild = require('esbuild');
+
+esbuild
+  .build({
+    entryPoints: ['src/index.ts'],
+    outdir: 'dist',
+    bundle: true,
+    sourcemap: true,
+    minify: false, // might want to use true for production build
+    format: 'cjs', // needs to be CJS for now
+    target: ['es2020'] // don't go over es2020 because quickjs doesn't support it
+  })