Glossary support for Google Cloud Translation Advanced

[gersona]

Proposed changes

Added optional glossary support for Google v3 automatic suggestions.
Notable changes include:

• New bucket_name field for GoogleV3MachineryForm settings form
• New optional dependency google-cloud-storage

Checklist

• Lint and unit tests pass locally with my changes.
• I have added tests that prove my fix is effective or that my feature works.
• I have added documentation to describe my feature.
• I have squashed my commits into logic units.
• I have described the changes in the commit messages.

Other information

fixes #10526

[codecov]

Codecov Report

Attention: Patch coverage is 98.93617% with 1 line in your changes missing coverage. Please review.

Project coverage is 90.89%. Comparing base (2a851d7) to head (9d1e231).
Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
weblate/machinery/googlev3.py	97.43%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12777      +/-   ##
==========================================
+ Coverage   90.87%   90.89%   +0.01%     
==========================================
  Files         598      598              
  Lines       61681    61773      +92     
  Branches     6367     6369       +2     
==========================================
+ Hits        56055    56150      +95     
+ Misses       3964     3962       -2     
+ Partials     1662     1661       -1     

Files with missing lines	Coverage Δ
weblate/machinery/base.py	93.31% <100.00%> (+0.01%)	⬆️
weblate/machinery/forms.py	96.29% <100.00%> (+0.03%)	⬆️
weblate/machinery/tests.py	99.69% <100.00%> (+0.01%)	⬆️
weblate/machinery/googlev3.py	93.75% <97.43%> (+2.84%)	⬆️

... and 5 files with indirect coverage changes

[nijel]

The CI failures were caused by not updated lock file with the new dependencies. I've just done that by uv sync --all-extras --no-sources. This needs to be documented and possibly automated by CI (not sure if we can directly run https://github.com/WeblateOrg/weblate/blob/main/.github/workflows/uv-upgrade.yml on pull requests, but I will give it a try).

[nijel]

Merged, thanks for your contribution!