Bump google.golang.org/grpc from 1.69.4 to 1.70.0

[dependabot]

Bumps google.golang.org/grpc from 1.69.4 to 1.70.0.

Release notes

Sourced from google.golang.org/grpc's releases.

Release 1.70.0

Behavior Changes

• client: reject service configs containing an invalid retryPolicy in accordance with gRFCs A21 and A6. (#7905)
  • Note that this is a potential breaking change for some users using an invalid configuration, but continuing to allow this behavior would violate our cross-language compatibility requirements.

New Features

• xdsclient: fallback to a secondary management server (if specified in the bootstrap configuration) when the primary is down is enabled by default. Can be disabled by setting the environment variable GRPC_EXPERIMENTAL_XDS_FALLBACK to false. (#7949)
• experimental/credentials: experimental transport credentials are added which don't enforce ALPN. (#7980)
  • These credentials will be removed in an upcoming grpc-go release. Users must not rely on these credentials directly. Instead, they should either vendor a specific version of gRPC or copy the relevant credentials into their own codebase if absolutely necessary.

Bug Fixes

• xds: fix a possible deadlock that happens when both the client application and the xDS management server (responsible for configuring the client) are using the xds:/// scheme in their target URIs. (#8011)

Performance

• server: for unary requests, free raw request message data as soon as parsing is finished instead of waiting until the method handler returns. (#7998)
  • Special Thanks: @​lqs

Documentation

• examples/features/gracefulstop: add example to demonstrate server graceful stop. (#7865)

Commits

• 98a0092 Change version to 1.70.0 (#7984)
• bf380de Cherrypick #7998, #8011, #8010 into 1.70.x (#8028)
• 54b3eb9 experimental/credentials: Add credentials that don't enforce ALPN (#7980) (#8...
• 62b9185 clustetresolver: Copy endpoints.Addresses slice from DNS updates to avoid dat...
• 724f450 examples/features/csm_observability: use helloworld client and server instead...
• e8d5feb rbac: add method name to :path in headers (#7965)
• e912015 cleanup: Fix usages of non-constant format strings (#7959)
• 681334a cleanup: replace dial with newclient (#7943)
• 063d352 internal/resolver: introduce a new resolver to handle target URI and proxy ad...
• 10c7e13 outlierdetection: Support health listener for ejection updates (#7908)
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