Scheduled weekly dependency update for week 19 (#447)

* Update httpie from 1.0.3 to 2.1.0

* Update tzlocal from 2.0.0 to 2.1

Author: pyup-bot

docker/integtest/requirements.txt

@@ -1 +1 @@
-httpie==1.0.3
+httpie==2.1.0

requirements-webapp.txt

@@ -25,7 +25,7 @@ passlib==1.7.2
 python-crontab==2.4.2
 requests==2.23.0
 typing==3.7.4.1
-tzlocal==2.0.0
+tzlocal==2.1
 watchdog==0.10.2
 xtarfile[zstd]==0.0.2
 Pillow==7.1.2