fix: Update left-over CJS require of publish-browser-extension to ESM (#2120)

packages/wxt/bin/wxt-publish-extension.mjs

@@ -4,4 +4,4 @@
  * `publish-browser-extension` as a direct dependency (like for PNPM, which doesn't link
  * sub-dependency binaries to "node_modules/.bin")
  */
-require('publish-browser-extension/cli');
+import 'publish-browser-extension/cli';

packages/wxt/package.json

@@ -112,7 +112,7 @@
   ],
   "bin": {
     "wxt": "./bin/wxt.mjs",
-    "wxt-publish-extension": "./bin/wxt-publish-extension.cjs"
+    "wxt-publish-extension": "./bin/wxt-publish-extension.mjs"
   },
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.mts",