fix: use markupsafe<=2.0.1

Fuchen Shi · Fuchen Shi · commit cbeddb835eea · 2022-06-23T16:02:32.000+08:00
diff --git a/requirements.txt b/requirements.txt
@@ -8,3 +8,4 @@ Werkzeug>=0.16.0,<2.0.0
 secure-cookie>=0.1.0,<1.0.0
 gevent>=21.1.0,<22.0.0
 typing; python_version < '3.5'
+markupsafe<=2.0.1
