gRPC 1.47.1发布

This is release gRPC Core 1.47.1 (gridman).

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes.

Core

• [Backport] Using string rep for status-time (#30123) #30145
• [Backport] Tell MSVC to build grpc with utf-8 (#30003) #30153
• [Backport] Ring hash: fix picker propagation bug in xds_cluster_manager policy (#29959) #30241