Webpack workaround (#22605)

The string of code `new URL('./', import.meta.url)` causes webpack to
try and resolve the URL, which causes problems for downstream users who
are using that bundler:

webpack/webpack#16878

electric-sql/pglite#328

This PR replaces `new URL('./', import.meta.url)` with `new URL('./',
Object(import.meta).url)`, which is a workaround for this behavior.

Author: seanmorris

src/shell.js

@@ -235,7 +235,7 @@ if (ENVIRONMENT_IS_NODE) {
   // EXPORT_ES6 + ENVIRONMENT_IS_NODE always requires use of import.meta.url,
   // since there's no way getting the current absolute path of the module when
   // support for that is not available.
-  scriptDirectory = require('url').fileURLToPath(new URL('./', import.meta.url)); // includes trailing slash
+  scriptDirectory = nodePath.dirname(require('url').fileURLToPath(import.meta.url)) + '/';
 #else
   scriptDirectory = __dirname + '/';
 #endif