chore(deps): bump mike from 2.1.2 to 2.1.3

Bumps [mike](https://github.com/jimporter/mike) from 2.1.2 to 2.1.3.
- [Release notes](https://github.com/jimporter/mike/releases)
- [Changelog](https://github.com/jimporter/mike/blob/master/CHANGES.md)
- [Commits](jimporter/mike@v2.1.2...v2.1.3)

---
updated-dependencies:
- dependency-name: mike
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/requirements-docs.txt

@@ -4,4 +4,4 @@ mkdocs-material==9.5.31
 mdx_truly_sane_lists==1.3
 pymdown-extensions==10.9
 jinja2==3.1.4
-mike==2.1.2
+mike==2.1.3