Bump sphinxemoji from 0.2.0 to 0.3.1

Bumps [sphinxemoji](https://github.com/sphinx-contrib/emojicodes) from 0.2.0 to 0.3.1.
- [Commits](sphinx-contrib/emojicodes@v0.2.0...v0.3.1)

---
updated-dependencies:
- dependency-name: sphinxemoji
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -5,7 +5,7 @@ Pygments==2.16.1
 sphinx>=4.4.0
 sphinx-click==5.0.1
 sphinx-copybutton==0.5.2
-sphinxemoji==0.2.0
+sphinxemoji==0.3.1
 sphinx-jsonschema==1.19.1
 sphinx-version-warning==1.1.2
 sphinx-book-theme==1.0.1