No More Parallel Index Creation

We couldn't deploy any new instances due to a bug with Firestore index creation. This changes makes it so that indexes are only created one after another.

See more details here: pulumi/pulumi-google-native#528

As a result, stack deployment takes much longer unfortunately.

What's Changed

• bugfix/create-firestore-indexes-one-after-another by @JacksonMaxfield in #194

Full Changelog: v3.1.0...v3.1.1