Compatibility Issue with Non-Default Database in Admin Package Due to @google-cloud/firestore Version

The admin package's dependency on @google-cloud/firestore is currently specified as ^6.6.0. However, there appears to be a compatibility issue with non-default databases when using any version below 6.7. This conflict arises despite documentation indicating support for these database configurations.

Update the required version of @google-cloud/firestore in the admin package to ^6.7.0 to ensure compatibility with non-default databases.