feat: replace re module with regex

[4-9]

This replaces all imports of the re regex module with regex. This should be backward compatible with re, so just changing the import should be enough.

Some tests fail for as yet unknown reasons, as mentioned regex should be backward compatible with re, so some tweaks to the tests might be needed.

In the UI, all works as expected. You can use the following test regex check to validate.

regex:'^[-_\p{Ll}\p{Lo}\p{N}\p{sc=Deva}\p{sc=Thai}]{1,32}$'

Fixes #13728

[nijel]

How about doing that in the regex check only? There is no use for this elsewhere and I'm worried about performance regressions.

[nijel]

Apparently, it's not 100% API compatible, so let's introduced it really in the single place where it is wanted:

AttributeError: '_regex.Pattern' object has no attribute 'decode'

[4-9]

Just updating the one file file needed now.

[nijel]

Would you be able to add the test for the expression you wanted to use? The existing tests are in weblate/checks/tests/test_placeholders.py.

[nijel]

Can you also please add types-regex==2024.11.6.20241221 to the types dependency group in pyproject.toml so that the type checker does not complain.

[4-9]

I've added a test now, but not entirely sure what I'm doing. It seems to work, and would fail if re is used