feat: add labels option for the backport and copy commands

[v1v]

Description of the change

Add labels option for the backport and copy commands.

Related issues

Fix #2288

Checklists

Development

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• The code changed/added as part of this pull request must be covered with tests
• Hotfixes must have a link to Sentry issue and the hotfix label
• Features must have a link to a Linear task

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[v1v]

I've no clue how to test this locally:

• tox -e test-docker fails with

ERROR: InvocationError for command /Users/vmartinez/work/src/github.com/v1v/mergify-engine/run-tests.sh docker run --rm --net=host --env-file test.env -e 'MERGIFYENGINE_STORAGE_URL=redis://localhost:6363?db=2' -e 'MERGIFYENGINE_STREAM_URL=redis://localhost:6363?db=3' -e PORT=8802 -p 8802 engine-dev aio (exited with code 125)

• tox -e test fails with

12:06:44 bridge.1 | voluptuous.error.MultipleInvalid: required key not provided @ data['BOT_USER_ID']
12:06:44 system   | bridge.1 stopped (rc=1)
12:06:44 system   | sending SIGTERM to engine.1 (pid 18890)
12:06:44 engine.1 | 12:06:44 system   | SIGTERM received
12:06:44 engine.1 | Traceback (most recent call last):
12:06:44 engine.1 |   File "/Users/vmartinez/work/src/github.com/v1v/mergify-engine/.tox/test/bin/honcho", line 8, in <module>

In addition I've no clue how to generate the testdata, I'd appreciate any help in that regard

Thanks

[jd]

Thanks, I fixed a bunch of those in #2335 !

[jd]

@sileht that looks good to me
Can you take a look and record the test if that works for you?

[sileht]

That looks good, I will take of generating the fixture for functional tests.

Pull request has been modified.

Pull request has been modified.