Angular CLI: v21.2.3 Release

@angular/cli

| Commit | Description | | -- | -- | | | use parsed package name for migrate-only updates |

@angular/build

| Commit | Description | | -- | -- | | | alias createRequire banner import to avoid duplicate binding | | | only use external packages for polyfills when no local files are present |

@angular/ssr

| Commit | Description | | -- | -- | | | disallow x-forwarded-prefix starting with a backslash | | | ensure unique values in redirect response Vary header | | | support custom headers in redirect responses |