Disable pypi for merge workflows + fix trainer tests

[muellerzr]

What does this PR do?

Disables the pypi release tests for merge and PR CI's. Unnecessary feedback and should reduce main CI time by ~10min and uninstalls trackers to fix the issues with the transformers tests

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• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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• Did you write any new necessary tests?

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@BenjaminBossan

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[muellerzr]

CI running to check this:

[SunMarc]

LGTM! Just to be sure, did we ever encountered a situation were the tests were failing on pypi but not on the main branch of transformers ? If that's not the case, it makes sense to disable pypi.

[muellerzr]

@SunMarc yes, because a fix was put into the main in transformers and then propagated once the next release came out. This CI will still run on pypi for releases + nightly, but we don't need that level of feedback on main

[BenjaminBossan]

Sounds reasonable, thanks for making the change. Just for my understanding, what is the issue with the trackers?

[muellerzr]

@BenjaminBossan unrelated test failures due to comet-ml not liking how certain things are setup, and the examples tests pull them all in automatically. Rather than dealing with faking the trackers/mocks/etc etc on the transformers side just uninstall them so as to not worry about it