Bump sphinx from 6.1.3 to 6.2.1 (#272)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 6.1.3 to 6.2.1.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v6.1.3...v6.2.1)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

dev_requirements/requirements-docs.txt

@@ -12,8 +12,6 @@ certifi==2022.12.7
     # via requests
 charset-normalizer==3.1.0
     # via requests
-colorama==0.4.6
-    # via sphinx
 docutils==0.18.1
     # via
     #   sphinx
@@ -34,13 +32,13 @@ requests==2.28.2
     # via sphinx
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==6.1.3
+sphinx==6.2.1
     # via
-    #   -r requirements-docs.in
+    #   -r dev_requirements/requirements-docs.in
     #   sphinx-rtd-theme
     #   sphinxcontrib-jquery
 sphinx-rtd-theme==1.2.0
-    # via -r requirements-docs.in
+    # via -r dev_requirements/requirements-docs.in
 sphinxcontrib-applehelp==1.0.4
     # via sphinx
 sphinxcontrib-devhelp==1.0.2