Improve semver check for modules polyfill

The polyfill uses the Ember global, which is deprecated in `3.27.0`.
This additionally disables the polyfill for the `3.27.0-beta.x` ranges.

Fixes embroider-build#781.

packages/compat/src/compat-app.ts

@@ -361,7 +361,7 @@ class CompatAppAdapter implements AppAdapter<TreeNames> {
     }
 
     let emberSource = this.activeAddonChildren().find(a => a.name === 'ember-source')!;
-    let emberNeedsModulesPolyfill = semver.satisfies(emberSource.version, '<3.27.0', { includePrerelease: true });
+    let emberNeedsModulesPolyfill = semver.satisfies(emberSource.version, '<3.27.0-beta.0', { includePrerelease: true });
 
     return {
       activeAddons,