chore(deps): update dependency mkdocs to >=1.6.0,<1.7.0

requirements-docs.txt

@@ -1,4 +1,4 @@
-mkdocs>=1.4.2,<1.5.2
+mkdocs>=1.6.0,<1.7.0
 mkdocs-material>=9.0.12,<10.0.0
 mkdocs-material-extensions>=1.1.1,<2.0.0
 mkdocs-table-reader-plugin<=2.2.0