Update to py3-rapidfuzz 3.14.6 from Chris Billingtom
## Fixed
* fix some divergences in the pure Python fallback
* fix compatibility with new Cython versions
* fixed potential out of bound access inside Editops.remove_subsequence
* fixed handling python fallback implementation of Editops.remove_subsequence
## Removed
* dropped support for Python 3.10
* dropped wheels for experimental Python 3.13 free threaded
www/librewolf: assorted port improvements, from Leah Rowe (MAINTAINER)
- sync policies.json with the one from www/mozilla-fireofx
- patch upstream mozconfig instead of maintaining a custom one in files/
should make future maintainance easier.