Update dependency more-itertools to v8.5.0

Author: renovate-bot

requirements.txt

@@ -13,7 +13,7 @@ Jinja2==2.11.2
 jsmin==2.2.2
 lesscpy==0.14.0
 MarkupSafe==1.1.1
-more-itertools==8.4.0
+more-itertools==8.5.0
 packaging==20.4
 pluggy==0.13.1
 ply==3.11