Bump sphinx-issues from 4.1.0 to 5.0.0 (#481)

Bumps [sphinx-issues](https://github.com/sloria/sphinx-issues) from 4.1.0 to 5.0.0.
- [Commits](sloria/sphinx-issues@4.1.0...5.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -26,7 +26,7 @@ Issues = "https://github.com/sloria/TextBlob/issues"
 Source = "https://github.com/sloria/TextBlob"
 
 [project.optional-dependencies]
-docs = ["sphinx==8.0.2", "sphinx-issues==4.1.0", "PyYAML==6.0.2"]
+docs = ["sphinx==8.0.2", "sphinx-issues==5.0.0", "PyYAML==6.0.2"]
 tests = ["pytest", "numpy"]
 dev = ["textblob[tests]", "tox", "pre-commit~=3.5"]