Update urllib3 from 1.25.3 to 1.25.6

pyup-bot · pyup-bot · commit 8895081b1197 · 2019-09-24T15:52:20.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,3 @@
 requests==2.22.0
 timeout-decorator==0.4.1
-urllib3==1.25.3
+urllib3==1.25.6
