chore(deps): update dependency grpc to v1.70.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
grpc	bazel_dep	minor	1.66.0.bcr.2 -> 1.70.1

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Warning

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Release Notes

grpc/grpc (grpc)

v1.70.1

This is release 1.70.1 (genius) of gRPC Core.

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

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [Backport-v1.70.x] Added ws2_32 to address_sortinghttps://github.com/grpc/grpc/pull/3865757)

Ruby

• Add ruby 3.4 support to pre-compiled native gems (https://github.com/grpc/grpc/pull/38615)

v1.69.0

This is release 1.69.0 (gridiron) of gRPC Core.

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

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [Alarm] Fix Alarm reuse on cancellation. (#​38114)
• [xDS RBAC] Support string_match in HeaderMatcher. (#​38185)
• [pick_first] fix shutdown bug in new PF impl. (#​38144)
• [c-ares] Fix inverted length check in GrpcPolledFdWindows. (#​38101)
• [RetryFilter] Copy the SliceBuffer from RetryFilter's cache to batch payload. (#​38069)
• [EventEngine] Add stronger wording on Endpoint::Read contract. (#​38036)
• [chttp2] Fix channelz address. (#​38022)
• [XdsClient] Add missing authority to XdsClient metrics scope. (#​38009)
• [EventEngine] API contract: Endpoint::Read will provide either an error or data, but never both. (#​38019)
• [Build] Dropped Bazel 6.x support. (#​37979)

Python

• [Build] Override MACOSX_DEPLOYMENT_TARGET for gRPC Python. (#​37997)

v1.68.0

This is release 1.68.0 (groovy) of gRPC Core.

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

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [XdsClient][Backport] Add missing authority to XdsClient metrics scope (#​38009). (#​38023)
• [Release] Bump core version in preparation for 1.68 Branch Cut. (#​37941)
• [ConfigFetcher] Set HTTP2 error to NO_ERROR to do graceful GOAWAYs. (#​37939)
• [ruby] reduce INFO log for server CQ pluck registration to DEBUG. (#​37633)
• [EventEngine] Enable the PosixEventEngine client experiment. (#​35985)
• [chttp2_server] Fix race between connection starting and it being orphaned. (#​37683)
• [Chttp2Server] Fix race between connection manager updates and handshake. (#​37772)
• [xds] Fix XdsClient race between ResourceDoesNotExist timer and receiving resources. (#​37678)

C++

• [Build] Minimum version of MSVC is now 2022. (#​37687)
• [Build] Bumped the minimum version of cmake. (#​37702)

Python

• Add templating and support for Python 3.13. (#​37643)

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