🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

README.md

@@ -57,13 +57,13 @@ implementation 'com.google.cloud:google-cloud-firestore'
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-firestore:3.20.0'
+implementation 'com.google.cloud:google-cloud-firestore:3.20.2'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-firestore" % "3.20.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-firestore" % "3.20.2"
 ```
 <!-- {x-version-update-end} -->
 
@@ -222,7 +222,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-firestore/java11.html
 [stability-image]: https://img.shields.io/badge/stability-stable-green
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-firestore.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-firestore/3.20.0
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-firestore/3.20.2
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles

owl-bot-staging/v1/google-cloud-firestore-admin/src/main/java/com/google/cloud/firestore/v1/FirestoreAdminClient.java renamed to google-cloud-firestore-admin/src/main/java/com/google/cloud/firestore/v1/FirestoreAdminClient.java

@@ -30,7 +30,6 @@
 import com.google.api.gax.rpc.ClientSettings;
 import com.google.api.gax.rpc.OperationCallSettings;
 import com.google.api.gax.rpc.PagedCallSettings;
-import com.google.api.gax.rpc.StubSettings;
 import com.google.api.gax.rpc.TransportChannelProvider;
 import com.google.api.gax.rpc.UnaryCallSettings;
 import com.google.cloud.firestore.v1.stub.FirestoreAdminStubSettings;

owl-bot-staging/v1/google-cloud-firestore-admin/src/main/java/com/google/cloud/firestore/v1/FirestoreAdminSettings.java renamed to google-cloud-firestore-admin/src/main/java/com/google/cloud/firestore/v1/FirestoreAdminSettings.java

@@ -75,7 +75,6 @@
 import io.grpc.MethodDescriptor;
 import io.grpc.protobuf.ProtoUtils;
 import java.io.IOException;
-import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import javax.annotation.Generated;