Since we already finished v26.1 upgrade in https://github.com/grpc/grpc/pull/35796
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Closes#36230
PiperOrigin-RevId: 623960260
In Cython 3, cdef functions that really will not raise exceptions must be declared as `noexcept`. Fixed by this commit.
Update requirements to `cython >= 3.0` in requirements*.txt and setup.py.
Fixes issue #33918.
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Closes#35995
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35995 from badshah400:master b3277bac15
PiperOrigin-RevId: 621214091
* Update third_party/protobuf
* run tools/distrib/python/make_grpcio_tools.py
* regenerate protos for ruby, php
* update build_handwritten.yaml
* regenerate projects
* Build - Use :well_known_type_protos instead of :well_known_protos
* Fix target
* Update upb
* Update Python for Protobuf 4.21 (#140)
* Update protobuf dependency on grpcio-tools
* Off by one
* Drop python 3.6 support
* Try upgrading pip
* And in the other script
* Try to figure out if we're compatible with abi3
* See what we've already got installed
* Update the requirements.txt file I didn't know existed
* And here too
* See what's installed
* Let's try that again
* Remove
* Try to confirm version
* Let me see the generated code
* Fix non-Bazel test runner
* Work for all test directories
* Regenerate example protos
* Clean up
* Generate .pyi files
* Fix type checking and linting
* Exclude pyi files from isort
* Upgrade to 3.21.4
* Update iwyu to get around messy protobuf IWYU rules
Co-authored-by: Richard Belleville <gnossen@gmail.com>