Google provider December removal

[olegkachur-e]

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[moiseenkov]

Well done!
There are only two things I'd kindly ask you to amend:

1. please add an announcement about breaking changes and the major version bump in the providers/src/airflow/providers/google/CHANGELOG.rst the same way it has been done last time.
2. please rename unit test classes, so the old operators' names were vanished from everywhere and the current tests had consistent names:
   TestCreateDataPipelineOperator -> TestDataflowCreatePipelineOperator
TestRunDataPipelineOperator -> TestDataflowRunPipelineOperator

[olegkachur-e]

Well done! There are only two things I'd kindly ask you to amend:

1. please add an announcement about breaking changes and the major version bump in the providers/src/airflow/providers/google/CHANGELOG.rst the same way it has been done last time.
2. please rename unit test classes, so the old operators' names were vanished from everywhere and the current tests had consistent names:
   TestCreateDataPipelineOperator -> TestDataflowCreatePipelineOperator
TestRunDataPipelineOperator -> TestDataflowRunPipelineOperator

Brilliant mentions, thank you!

[moiseenkov]

Well done! There are only two things I'd kindly ask you to amend:

1. please add an announcement about breaking changes and the major version bump in the providers/src/airflow/providers/google/CHANGELOG.rst the same way it has been done last time.
2. please rename unit test classes, so the old operators' names were vanished from everywhere and the current tests had consistent names:
   TestCreateDataPipelineOperator -> TestDataflowCreatePipelineOperator
TestRunDataPipelineOperator -> TestDataflowRunPipelineOperator

Brilliant mentions, thank you!

Thank you! All is good, but please move changelog announcements into a new section for the new 12.0.0 version.