Bump sphinx from 6.2.1 to 7.1.2 (#1232)

* Bump sphinx from 6.2.1 to 7.2.4

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 6.2.1 to 7.2.4.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v6.2.1...v7.2.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

* Pin sphinx==7.1.2

* Sphinx 7.1.2 is the last version to support Python 3.8.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: JonnyWong16 <[email protected]>

Author: dependabot[bot]

requirements_dev.txt

@@ -12,7 +12,7 @@ pytest-mock==3.11.1
 recommonmark==0.7.1
 requests==2.31.0
 requests-mock==1.11.0
-sphinx==6.2.1
+sphinx==7.1.2
 sphinx-rtd-theme==1.3.0
 tqdm==4.66.1
 websocket-client==1.6.2