Google.Cloud.Firestore version 4.3.0

New features

• Expose the 'auto_commit_transaction' option for the ExecutePipeline API
• Expose the 'concurrency_mode' option for the Cloud Firestore API

Documentation improvements

• A comment for message TransactionOptions is changed to better detail the new 'concurrency_mode' option.
• A comment for field parent in message .google.firestore.v1.ListCollectionIdsRequest is changed to describe how to list top-level collections.
• A comment for field order_by in message .google.firestore.v1.StructuredQuery is updated to describe default behavior for ENTERPRISE edition databases