bot: Add PyYaml dep

Bastien Abadie · Bastien Abadie · commit b031c52d353f · 2020-03-04T06:26:38.000+01:00
diff --git a/bot/requirements.txt b/bot/requirements.txt
@@ -3,5 +3,6 @@ google-cloud-storage==1.26.0
 libmozdata==0.1.65
 pytoml==0.1.21
 pytz==2019.3
+pyyaml==5.3
 tenacity==6.1.0
 zstandard==0.13.0
