[upd] pypi: Bump sphinx-notfound-page from 1.0.2 to 1.0.4

Bumps [sphinx-notfound-page](https://github.com/readthedocs/sphinx-notfound-page) from 1.0.2 to 1.0.4.
- [Changelog](https://github.com/readthedocs/sphinx-notfound-page/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/readthedocs/sphinx-notfound-page/compare/1.0.2...1.0.4)

---
updated-dependencies:
- dependency-name: sphinx-notfound-page
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

requirements-dev.txt

@@ -13,7 +13,7 @@ sphinx-jinja==2.0.2
 sphinx-tabs==3.4.5
 sphinxcontrib-programoutput==0.17
 sphinx-autobuild==2021.3.14
-sphinx-notfound-page==1.0.2
+sphinx-notfound-page==1.0.4
 myst-parser==3.0.1
 linuxdoc==20240509
 aiounittest==1.4.2