Update jinja2 from 3.1.3 to 3.1.6

Author: pyup-bot

docs/requirements.txt

@@ -28,7 +28,7 @@ idna==3.4
     # via requests
 imagesize==1.4.1
     # via sphinx
-jinja2==3.1.3
+jinja2==3.1.6
     # via sphinx
 kiwisolver==1.4.5
     # via matplotlib