[#8535] Upgrade feedparser 6.0.10 -> 6.0.11, and its deps: sgmllib3k

    feedparser                       6.0.10 -> 6.0.11
        sgmllib3k                     1.0.0 -> no upgrade
diff --git a/requirements.txt b/requirements.txt
index f6864b8..585b17c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,7 +56,7 @@
     # via -r requirements.in
 feedgenerator==2.1.0
     # via -r requirements.in
-feedparser==6.0.10
+feedparser==6.0.11
     # via -r requirements.in
 filelock==3.12.4
     # via virtualenv