Update typing from 3.6.4 to 3.6.6 (#3956)

requirements/common.txt

@@ -236,10 +236,10 @@ graphql-core==2.1 \
     --hash=sha256:9462e22e32c7f03b667373ec0a84d95fba10e8ce2ead08f29fbddc63b671b0c1 \
     --hash=sha256:889e869be5574d02af77baf1f30b5db9ca2959f1c9f5be7b2863ead5a3ec6181
 graphql-relay==0.4.5 --hash=sha256:2716b7245d97091af21abf096fabafac576905096d21ba7118fba722596f65db
-typing==3.6.4 \
-    --hash=sha256:b2c689d54e1144bbcfd191b0832980a21c2dbcf7b5ff7a66248a60c90e951eb8 \
-    --hash=sha256:3a887b021a77b292e151afb75323dea88a7bc1b3dfa92176cff8e44c8b68bddf \
-    --hash=sha256:d400a9344254803a2368533e4533a4200d21eb7b6b729c173bc38201a74db3f2
+typing==3.6.6 \
+    --hash=sha256:a4c8473ce11a65999c8f59cb093e70686b6c84c98df58c1dae9b3b196089858a \
+    --hash=sha256:57dcf675a99b74d64dacf6fba08fb17cf7e3d5fdff53d4a30ea2a5e7e52543d4 \
+    --hash=sha256:4027c5f6127a6267a435201981ba156de91ad0d1d98e9ddc2aa173453453492d
 promise==2.1 \
     --hash=sha256:0bca4ed933e3d50e3d18fb54fc1432fa84b0564838cd093e824abcd718ab9304 \
     --hash=sha256:95506bac89df7a495e0b8c813fd782dd1ae590decb52f95248e316c6659ca49b