build(deps): bump grpc from 1.74.1 to 1.76.0

[dependabot]

Bumps grpc from 1.74.1 to 1.76.0.

Release notes

Sourced from grpc's releases.

Release v1.76.0

This is release 1.76.0 (genuine) 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

• Prioritize system CA over bundled CA. (#40583)
• [event_engine] Introduce a event_engine_poller_for_python experiment. (#40243)
• [metrics] add grpc.lb.backend_service label. (#40486)

C#

• [csharp tools] #39374 Grpc.Tools can't process file Suffix name with Upper character. (#40072)

Python

• [Python] gRPC AsyncIO: Improve CompletionQueue polling performance. (#39993)

Release v1.76.0-pre1

This is a prerelease of gRPC Core 1.76.0 (genuine).

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

This prerelease contains refinements, improvements, and bug fixes.

Release v1.75.1

This is release gRPC Core 1.75.1 (gemini).

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

This release contains refinements, improvements, and bug fixes.

What's Changed

Python

• Release grpcio wheels with Python 3.14 support (#40403)
• Asyncio: fixes grpc shutdown race condition occurring during python interpreter finalizations. (#40447)
  • This also addresses previously reported issues with empty error message on Python interpreter exit (Error in sys.excepthook:/Original exception was: empty): #36655, #38679, #33342
• Python 3.14: preserve current behavior when using grpc.aio async methods outside of a running event loop. (#40750)
  • Note: using async methods outside of a running event loop is discouraged by Python, and will be deprecated in future gRPC releases. Please use the asyncio.run() function (or asyncio.Runner for custom loop factories). For interactive mode, use dedicated asyncio REPL: python -m asyncio.

Full Changelog: grpc/grpc@v1.75.0...v1.75.1

... (truncated)

Commits

• f5ffb68 [Release] Bump version to 1.76.0 (on v1.76.x branch) (#40925)
• ffd8379 [Release] Bump version to 1.76.0-pre1 (on v1.76.x branch) (#40798)
• 835d394 [Release] Bump core version to 51.0.0 for upcoming release (#40784)
• de6ce7f [PH2] Add files for goaway support (#40786)
• f7dd7f4 [PH2][Trivial][CleanUp]
• 2d40a37 [PH2][ChannelZ][ZTrace][Skeleton]
• 83acb27 [build] Add Missing Dependencies for reflection_proto in Preparation for Enab...
• abfe8a2 [PH2] Stream list represents streams open for reads.
• c65d8de [PH2][Expt] Fix the experiment expiry
• bac84b1 Automated rollback of commit 74232c6bd3c0f4bc35bad035dbeecf5cbc834a11.
• Additional commits viewable in compare view

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