feat(mfe): allow @vercel/microfrontends to be considered a MFE package dependency (#9493)

### Description

This PR allows `@vercel/microfrontends` to be considered a MFE
dependency in addition to `@vercel/micro-frontends-internal`.

### Testing Instructions

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  Give a quick description of steps to test your changes.
-->

Author: mknichel

crates/turborepo-micro-frontend/src/lib.rs

@@ -13,8 +13,13 @@ use turbopath::AbsoluteSystemPath;
 ///
 /// This is subject to change at any time.
 pub const DEFAULT_MICRO_FRONTENDS_CONFIG: &str = "micro-frontends.jsonc";
-pub const MICRO_FRONTENDS_PACKAGES: &[&str] = [MICRO_FRONTENDS_PACKAGE_INTERNAL].as_slice();
+pub const MICRO_FRONTENDS_PACKAGES: &[&str] = [
+    MICRO_FRONTENDS_PACKAGE_EXTERNAL,
+    MICRO_FRONTENDS_PACKAGE_INTERNAL,
+]
+.as_slice();
 pub const MICRO_FRONTENDS_PACKAGE_INTERNAL: &str = "@vercel/micro-frontends-internal";
+pub const MICRO_FRONTENDS_PACKAGE_EXTERNAL: &str = "@vercel/microfrontends";
 pub const SUPPORTED_VERSIONS: &[&str] = ["1"].as_slice();
 
 /// The minimal amount of information Turborepo needs to correctly start a local