Merge pull request #3437 from mozilla/pyup-update-decorator-4.3.0-to-4.4.0

Update decorator to 4.4.0

requirements/dev.txt

@@ -60,9 +60,9 @@ coverage==4.5.3 \
 cssselect==1.0.3 \
     --hash=sha256:3b5103e8789da9e936a68d993b70df732d06b8bb9a337a05ed4eb52c17ef7206 \
     --hash=sha256:066d8bc5229af09617e24b3ca4d52f1f9092d9e061931f4184cd572885c23204
-decorator==4.3.0 \
-    --hash=sha256:2c51dff8ef3c447388fe5e4453d24a2bf128d3a4c32af3fabef1f01c6851ab82 \
-    --hash=sha256:c39efa13fbdeb4506c476c9b3babf6a718da943dab7811c206005a4a956c080c
+decorator==4.4.0 \
+    --hash=sha256:86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de \
+    --hash=sha256:f069f3a01830ca754ba5258fde2278454a0b5b79e0d7f5c13b3b97e57d4acff6
 dennis==0.9 \
     --hash=sha256:f6487392ac91800c5f0684a99b404b7fd0f72ceb48faeb5a0ce4e2c24fb62d3f \
     --hash=sha256:8c942dd5da7d03c65daebc069c5ee5c7f1374ac9b0c8c89c627caa66fe822604