cli: use @module-federation/enhanced/rspack

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/mean-tigers-rush.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Switched to using the `ModuleFederationPlugin` from `@module-federation/enhanced/rspack` for Rspack, rather than the built-in one.

packages/cli/src/modules/build/lib/bundler/config.ts

@@ -231,8 +231,8 @@ export async function createConfig(
     const isRemote = options.moduleFederation?.mode === 'remote';
 
     const AdaptedModuleFederationPlugin = rspack
-      ? (rspack.container
-          .ModuleFederationPlugin as unknown as typeof ModuleFederationPlugin)
+      ? (require('@module-federation/enhanced/rspack')
+          .ModuleFederationPlugin as typeof ModuleFederationPlugin)
       : ModuleFederationPlugin;
 
     const exposes = options.moduleFederation?.exposes