build(deps-dev): bump pip-dependencies group (fix #9603 - virtualenv for tox 4.52.1)

[ThomasWaldmann]

This is a fix for the broken dependabot PR #9603.

Root cause: PR #9603 bumped tox from 4.48.1 → 4.52.1, but tox>=4.52.1 requires virtualenv>=21.1. The PR kept virtualenv==20.39.1 (20.x), causing a pip dependency conflict and failing all CI jobs with:

ERROR: Cannot install -r requirements.d/development.lock.txt (line 8) and virtualenv==20.39.1
because these package versions have conflicting dependencies.

The conflict is caused by:
    The user requested virtualenv==20.39.1
    tox 4.52.1 depends on virtualenv>=21.1

Fix: Bump virtualenv from 20.39.1 → 21.3.2 (latest stable) in development.lock.txt.

All other changes are identical to PR #9603:

• setuptools: 80.10.2 → 82.0.0 (lock) / >=78.1.1 → >=82.0.0 (txt)
• build: 1.4.3 → 1.4.4
• tox: 4.48.1 → 4.52.1
• pytest-cov: 7.0.0 → 7.1.0
• types-PyYAML: 6.0.12.20260408 → 6.0.12.20260510
• virtualenv: 20.39.1 → 21.3.2 ← the fix

Closes #9603

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.33%. Comparing base (227484b) to head (6d3abf7).
⚠️ Report is 6 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9607      +/-   ##
==========================================
- Coverage   83.34%   83.33%   -0.01%     
==========================================
  Files          89       89              
  Lines       15546    15546              
  Branches     2342     2342              
==========================================
- Hits        12957    12956       -1     
- Misses       1835     1836       +1     
  Partials      754      754              

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