gRPC-Core Release 1.78.0

[Michael Lumish]

This is 1.78.0([gutsy](https://github.com/grpc/grpc/blob/master/doc/g_stands_for.md)) release announcement for gRPC-Core and the wrapped languages C++, C#, Objective-C, Python, PHP and Ruby. Latest release notes are [here](https://github.com/grpc/grpc/releases/tag/v1.78.0).

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

C++

• adding address_sorting dep in naming test build. (#41045)

Objective-C

• [Backport][v1.78.x][Fix][Compiler] Plugins fall back to the edition 2023 for older protobuf. (#41358)

Python

• [python] aio: fix race condition causing asyncio.run() to hang forever during the shutdown process. (#40989)
• [Python] Migrate to pyproject.toml build system from setup.py builds. (#40833)
• [Python] Log error details when ExecuteBatchError occurs (at DEBUG level). (#40921)
• [Python] Update setuptools min version to 77.0.1 . (#40931)

Ruby

• [ruby] Fix version comparison for the ruby_abi_version symbol for ruby 4 compatibility. (#41061)