bubmpup grpc protobuf dependency to 3.21.4

[pgeler]

Specify library name and version:

continuation of #12079, #12156 and #12156

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• [x] I've read the guidelines for contributing.
• [x] I've followed the PEP8 style guides for Python code in the recipes.
• [x] I've used the latest Conan client version.
• [x] I've tried at least one configuration locally with the conan-center hook activated.

[ericLemanissierBot]

I detected other pull requests that are modifying grpc/all recipe:

• #12251
• #10804

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[conan-center-bot]

Failure in build 1 (bf97175fbe119fead369a892bfe7b2b9f5a61243):

• grpc/1.46.3@: Didn't run or was cancelled before finishing

• grpc/1.48.0@: Didn't run or was cancelled before finishing

• grpc/1.47.1@: Error running command conan info grpc/1.47.1@#7e8ca8dc2322a15b2f8f478c1b028bed --json {jsonName} --dry-build -pr {profileName}:

  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.libcxx=libstdc++11
  compiler.version=5
  os=Linux
  [options]
  grpc:shared=False
  
  ...
  WARN: googleapis/cci.20220531: requirement protobuf/3.21.1 overridden by grpc/1.47.1 to protobuf/3.21.4 
  WARN: grpc-proto/cci.20220627: requirement protobuf/3.21.1 overridden by grpc/1.47.1 to protobuf/3.21.4 
  WARN: grpc-proto/cci.20220627: requirement googleapis/cci.20220711 overridden by grpc/1.47.1 to googleapis/cci.20220531 
  ERROR: Conflict in grpc-proto/cci.20220627:
      'grpc-proto/cci.20220627' requires 'protobuf/3.21.1' while 'grpc/1.47.1' requires 'protobuf/3.21.4'.
      To fix this conflict you need to override the package 'protobuf' in your root package.
  

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^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}

[conan-center-bot]

All green in build 2 (5d5b576c0366efd82f6ddc940e0b15452791d284):

• grpc/1.47.1@: All packages built successfully! (All logs)

  :small_orange_diamond: Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future. This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work. See the recipe migration guide to know more about the changes required.}

  ERROR: Error loading conanfile at '/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py': Unable to load conanfile in /home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py
    File "<frozen importlib._bootstrap_external>", line 728, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py", line 4, in <module>
      from conans import ConanFile, CMake, tools as tools_legacy
  ImportError: cannot import name 'ConanFile' from 'conans' (/opt/pyenv/versions/3.7.13/lib/python3.7/site-packages/conans/__init__.py)
  

• grpc/1.48.0@: All packages built successfully! (All logs)

  :small_orange_diamond: Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future. This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work. See the recipe migration guide to know more about the changes required.}

  ERROR: Error loading conanfile at '/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py': Unable to load conanfile in /home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py
    File "<frozen importlib._bootstrap_external>", line 728, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py", line 4, in <module>
      from conans import ConanFile, CMake, tools as tools_legacy
  ImportError: cannot import name 'ConanFile' from 'conans' (/opt/pyenv/versions/3.7.13/lib/python3.7/site-packages/conans/__init__.py)
  

• grpc/1.46.3@: All packages built successfully! (All logs)

  :small_orange_diamond: Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future. This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work. See the recipe migration guide to know more about the changes required.}

  ERROR: Error loading conanfile at '/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py': Unable to load conanfile in /home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py
    File "<frozen importlib._bootstrap_external>", line 728, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/home/conan/w/prod_cci_PR-12157/recipes/grpc/all/conanfile.py", line 4, in <module>
      from conans import ConanFile, CMake, tools as tools_legacy
  ImportError: cannot import name 'ConanFile' from 'conans' (/opt/pyenv/versions/3.7.13/lib/python3.7/site-packages/conans/__init__.py)
  

[conan-center-bot]

This PR has been automatically merged due Bump version or Bump dependencies label. Read https://github.com/conan-io/conan-center-index/blob/master/docs/labels.md#bump-version to obtain more information.