build(deps-dev): bump ruff from 0.15.14 to 0.15.15 in /py (#99)

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.15.14 to 0.15.15.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.14...0.15.15)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.15
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

py/pyproject.toml

@@ -18,5 +18,5 @@ mwutil-py = "mwutil.cli:main"
 
 [dependency-groups]
 dev = [
-    "ruff>=0.15.14",
+    "ruff>=0.15.15",
 ]