deps: update dependency io.grpc:grpc-bom to v1.31.1

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
io.grpc:grpc-bom	minor	1.30.0 -> 1.31.1

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Release Notes

grpc/grpc-java

v1.31.1

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Bug Fixes:

• netty: The environment variable GRPC_EXPERIMENTAL_AUTOFLOWCONTROL=false will now disable the BDP monitoring introduced in v1.30.0. This is intended to help diagnose a “too_many_pings” compatibility issue and will be removed once it is resolved. If you need to use the variable, _please_ file an issue
• examples: some gRPC artifacts are missing in JCenter causing Android examples to sometimes fail to build. Now we are adding mavenCentral as fallback for the Android examples. See #​5782
• xds: meshCA protocol buffers added in v1.31.0 are now properly shaded in an internal package
• xds: fixed some internal breakage for traffic splitting

v1.31.0

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API Changes

• api: ManagedChannelBuilder.nameResolverFactory is now marked deprecated. It has long been our plan to remove the function, but was not communicated. Most usages should be able to globally register via the SPI mechanism or NameResolverRegistry.register(). There is a plan to add a method to ManagedChannelBuilder to specify the default target scheme for the channel. If your use-case is not covered, please inform us on #​7133

New Features

• The following new xDS functionality is added in this release:
  • Requests matching based on path (prefix, full path and safe regex) and headers.
  • Requests routing to multiple clusters based on weights.
  • The xDS features supported in a given release are documented here.
• api: Added LoadBalancer.Helper.createResolvingOobChannelBuilder(). It is similar to LoadBalancer.Helper.createResolvingOobChannel() except allows configuring the channel (#​7136)

Bug Fixes

• netty: return status code unavailable when netty channel has unresolved InetSocketAddress (#​7023)
• core: fix a bug that a call may hang when using manual flow control and gRPC retry is enabled (#​6817)

Documentation

• stub: Documented more behavior of ClientCalls and ServerCalls, with regard to ClientResponseObserver, ClientCallStreamObserver, ServerCallStreamObserver, and exceptions
• api: Documented how Providers may be used in their respective class documentation. Previously you “just had to know” the SPI mechanism was available

Dependencies

• Update guava to 29.0 (#​7079)

Examples

• examples: Add client/server retrying example via service config #​7111

Acknowledgements

@​alexanderscott
@​AnarSultanov
@​cindyxue
@​d-reidenbach
@​elharo
@​gsharma
@​reggiemcdonald

v1.30.2

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Bug Fixes

• xds: disable code for a future xds feature

v1.30.1

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Bug Fixes

• all: remove grpc-rls from grpc-all dependencies (#​7118). grpc-rls is not intended to be published yet, projects depending on grpc-all gets a "failed to collect dependencies at io.grpc:grpc-all:jar:1.30.0 -> io.grpc:grpc-rls:jar:1.30.0" error. This is fixed here.
• core: fix a bug that a call may hang when using manual flow control and gRPC retry is enabled. (#​6817)

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