docs: update mkdocs-material to 7.1.0

Author: heitorlessa

poetry.lock

@@ -50,7 +50,7 @@ radon = "^4.5.0"
 xenon = "^0.7.1"
 flake8-eradicate = "^1.0.0"
 flake8-bugbear = "^21.3.2"
-mkdocs-material = "^7.0.6"
+mkdocs-material = "^7.1.0"
 mkdocs-git-revision-date-plugin = "^0.3.1"
 mike = "^0.6.0"