chore(python-deps): update dependency idna to v3.15 in all dependant actions

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
idna (changelog)	==3.14 → ==3.15

---

Release Notes

kjd/idna (idna)

v3.15

Compare Source

• Enforce DNS-length cap on individual labels early in check_label,
  short-circuiting contextual-rule processing for oversized input
  while staying compatible with UTS 46 usage.
• Tidy core helpers: hoist bidi category sets to module-level
  frozensets (avoiding per-codepoint list construction), simplify
  length checks, and reuse the shared _unicode_dots_re from
  idna.core in the codec module.
• Use raise ... from err for proper exception chaining and
  switch internal string formatting to f-strings.
• Allow flit_core 4.x in the build backend.
• Expand the ruff lint set (flake8-bugbear, flake8-simplify,
  pyupgrade, perflint) and apply the surfaced fixes; pin lint CI
  to Python 3.14.
• Add Dependabot configuration for GitHub Actions.
• Convert README and HISTORY from reStructuredText to Markdown.
• Reference CVE-2026-45409 for the 3.14 advisory in place of the
  initial GHSA identifier.

Thanks to Felix Yan, Stan Ulbrych, and metsw24-max for
contributions to this release.

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (8ba40a4) to head (f925303).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1010   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         4           
  Lines          233       233           
  Branches        32        32           
=========================================
  Hits           233       233           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

Test Results (windows)

path	passed	subtotal
tests\test_bump_version_in_files.py	5	5
tests\test_create_unique_testpypi_version.py	7	7
tests\test_find_unreleased_changelog_items.py	6	6
tests\test_update_development_dependencies.py	13	13
TOTAL	31	31

Link to workflow run

[github-actions]

Test Results (macos)

path	passed	subtotal
tests/test_bump_version_in_files.py	5	5
tests/test_create_unique_testpypi_version.py	7	7
tests/test_find_unreleased_changelog_items.py	6	6
tests/test_update_development_dependencies.py	13	13
TOTAL	31	31

Link to workflow run

[github-actions]

Test Results (ubuntu)

path	passed	subtotal
tests/test_bump_version_in_files.py	5	5
tests/test_create_unique_testpypi_version.py	7	7
tests/test_find_unreleased_changelog_items.py	6	6
tests/test_update_development_dependencies.py	13	13
TOTAL	31	31

Link to workflow run