Bump the dev-dependencies group with 2 updates

Bumps the dev-dependencies group with 2 updates: [ruff](https://github.com/astral-sh/ruff) and [nbstripout](https://github.com/kynan/nbstripout).


Updates `ruff` from 0.15.2 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@0.15.2...0.15.4)

Updates `nbstripout` from 0.9.0 to 0.9.1
- [Release notes](https://github.com/kynan/nbstripout/releases)
- [Changelog](https://github.com/kynan/nbstripout/blob/main/CHANGELOG.md)
- [Commits](kynan/nbstripout@0.9.0...0.9.1)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.15.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: nbstripout
  dependency-version: 0.9.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -35,9 +35,9 @@ dev = [
     "pytest==9.0.2",
     "pytest-cov==7.0.0",
     "mypy==1.19.1",
-    "ruff==0.15.2",
+    "ruff==0.15.4",
     "pre-commit==4.5.1",
-    "nbstripout==0.9.0",
+    "nbstripout==0.9.1",
 ]
 docs = [
     "mkdocs==1.6.1",