Add parameter confirm to GCSToSFTPOperator

[Nimo139]

If the SFTP server picks up the file immediately Paramiko cannot check the file size.
The current operator terminates with a fail after the transfer because the file cannot be found.

[boring-cyborg]

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[potiuk]

I think we will need a (really small) unit test for that one

[eladkal]

Hey @Nimo139 do you have time to complete this PR?

[Nimo139]

Sorry for the late reply, I didn't have time to set up the test environment during the holidays. I have now adjusted the tests for the parameter so that they pass. I have added a very basic test. If you have any better suggestions on how to test it with the mocks, I am glad to hear them.

[potiuk]

Should be good enough - now the only thing left is to rebase to latest main and fix failing static checks

[eladkal]

I fixed the static tests but there is a failure with one of the unit tests that you need to look into @Nimo139
FAILED tests/providers/apache/beam/operators/test_beam.py::TestBeamRunJavaPipelineOperator::test_exec_dataflow_runner - AssertionError: expected call not found.
https://github.com/apache/airflow/actions/runs/7443638524/job/20248835783?pr=35704#step:5:1100

[Nimo139]

Sorry for the force-push, I accidentally updated without clicking the rebase option. I hope you can still use the PR.
The beam unit test should now pass.

[eladkal]

Is this change related to the PR?

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.