Bump the dev-deps group with 3 updates

Updates the requirements on [ruff](https://github.com/astral-sh/ruff), [black](https://github.com/psf/black) and [coveralls](https://github.com/TheKevJames/coveralls-python) to permit the latest version.

Updates `ruff` to 0.15.4
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.14.0...0.15.4)

Updates `black` to 26.1.0
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@25.12.0...26.1.0)

Updates `coveralls` to 4.1.0
- [Release notes](https://github.com/TheKevJames/coveralls-python/releases)
- [Changelog](https://github.com/TheKevJames/coveralls-python/blob/master/CHANGELOG.md)
- [Commits](TheKevJames/coveralls-python@4.0.0...4.1.0)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.4
  dependency-type: direct:development
  dependency-group: dev-deps
- dependency-name: black
  dependency-version: 26.1.0
  dependency-type: direct:development
  dependency-group: dev-deps
- dependency-name: coveralls
  dependency-version: 4.1.0
  dependency-type: direct:development
  dependency-group: dev-deps
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -90,15 +90,15 @@ docs = [
 ]
 lint = [
     "pylint==4.0.*",
-    "ruff==0.14.*",
-    "black==25.12.*",
+    "ruff==0.15.*",
+    "black==26.1.*",
     "mypy==1.19.*",
 ]
 test = [
     "pytest==9.0.*",
     "pytest-timeout==2.4.*",
     "pytest-modern==0.7.*;platform_system!='Windows'",
-    "coveralls==4.0.*",
+    "coveralls==4.1.*",
     "pytest-cov==7.0.*",
     "coverage==7.13.*",
     "hypothesis==6.*",