* Adding missing pre-commit requirement to tests.txt

* Added support for setting a timeout for distributed learning

* Adding documentation about how to change the runtime timeout into the distributed manual.

* Fixed type in documentation to correctly specify an integer

* Removing type-cast after checking the correct type already before

* Update mmengine/dist/utils.py

Adding an explicit `is not None` to the check

Co-authored-by: Mashiro <57566630+HAOCHENYE@users.noreply.github.com>

* Removing explicit type check and replacing it with more pythonic way of assuming it is the right type and handling the exception if the type doesn't match.

* Removing pre-commit from test requirements again

* Simplified the code according to suggestions from PR

* Update distributed.md

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Co-authored-by: Mashiro <57566630+HAOCHENYE@users.noreply.github.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>