Bump sphinx-issues from 1.2.0 to 2.0.0

Bumps [sphinx-issues](https://github.com/sloria/sphinx-issues) from 1.2.0 to 2.0.0.
- [Release notes](https://github.com/sloria/sphinx-issues/releases)
- [Commits](https://github.com/sloria/sphinx-issues/compare/1.2.0...2.0.0)

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

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

requirements-dev.txt

@@ -9,7 +9,7 @@ selenium==4.1.0
 twine==3.7.1
 Pallets-Sphinx-Themes==2.0.2
 Sphinx==4.3.2
-sphinx-issues==1.2.0
+sphinx-issues==2.0.0
 sphinx-jinja==1.2.1
 sphinx-tabs==3.2.0
 sphinxcontrib-programoutput==0.17