cherrypick update setup.py (#3057)

* Update setup.py

* Update requirements.txt

Author: zxcd

docs/requirements.txt

@@ -39,7 +39,7 @@ sphinx_rtd_theme
 textgrid
 timer
 ToJyutping
-typeguard
+typeguard==2.13.3
 webrtcvad
 websockets
 yacs~=0.1.8

setup.py

@@ -65,7 +65,7 @@
     "textgrid",
     "timer",
     "ToJyutping",
-    "typeguard",
+    "typeguard==2.13.3",
     "webrtcvad",
     "yacs~=0.1.8",
     "zhon",