Bump mkdocs from 1.2.2 to 1.2.3

Bumps [mkdocs](https://github.com/mkdocs/mkdocs) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/mkdocs/mkdocs/releases)
- [Commits](mkdocs/mkdocs@1.2.2...1.2.3)

---
updated-dependencies:
- dependency-name: mkdocs
  dependency-type: direct:production
...

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

requirements.txt

@@ -4,7 +4,7 @@ black==21.9b0
 mkdocs-autorefs==0.3.0
 mkdocs-material-extensions==1.0.3
 mkdocs-material==7.3.0
-mkdocs==1.2.2
+mkdocs==1.2.3
 mkdocstrings==0.16.2
 pandas==1.3.3
 prefect[viz]==0.15.5