Refresh mkdocs dependencies

Author: mdmintz

mkdocs_build/requirements.txt

@@ -15,7 +15,7 @@ click==8.1.3
 zipp==3.10.0
 ghp-import==2.1.0
 readme-renderer==37.3
-pymdown-extensions==9.7
+pymdown-extensions==9.8
 importlib-metadata==5.0.0
 bleach==5.0.1
 jsmin==3.0.1
@@ -29,7 +29,7 @@ cssselect2==0.7.0
 tinycss2==1.2.1
 defusedxml==0.7.1
 mkdocs==1.4.2
-mkdocs-material==8.5.8
+mkdocs-material==8.5.9
 mkdocs-exclude-search==0.6.4
 mkdocs-simple-hooks==0.1.5
 mkdocs-material-extensions==1.1