Bump mkdocs-material from 5.1.3 to 5.1.4 (#4174)

Bumps [mkdocs-material](/~https://github.com/squidfunk/mkdocs-material) from 5.1.3 to 5.1.4.
- [Release notes](/~https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](/~https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@5.1.3...5.1.4)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Evan Pete Walsh <epwalsh10@gmail.com>
Co-authored-by: ai2-bulldozer[bot] <47044978+ai2-bulldozer[bot]@users.noreply.github.com>

dev-requirements.txt

@@ -38,7 +38,7 @@ git+/~https://github.com/NiklasRosenstein/pydoc-markdown.git@b469839ceb598df3d7e71
 
 markdown-include==0.5.1
 # Package for the material theme for mkdocs
-mkdocs-material==5.1.3
+mkdocs-material==5.1.4
 
 #### PACKAGE-UPLOAD PACKAGES ####