debian: run collectstatic when gadjo is updated (#25360)

debian/wcs.postinst

@@ -8,6 +8,7 @@ USER=$NAME
 GROUP=$NAME
 CONFIG_DIR=/etc/wcs
 CONFIG_FILE=/etc/wcs/wcs.cfg
+MANAGE_SCRIPT="/usr/bin/$NAME-manage"
 
 # Read config file if it is present.
 if [ -r /etc/default/$NAME ]
@@ -48,6 +49,7 @@ case "$1" in
 
   triggered)
     su -s /bin/sh -c "$COMMAND hobo_deploy --redeploy" $USER
+    su -s /bin/sh -c "$MANAGE_SCRIPT collectstatic" $USER
     exit 0
   ;;
 

debian/wcs.triggers

@@ -1 +1,2 @@
 interest-noawait hobo-redeploy
+interest-noawait /usr/lib/python2.7/dist-packages/gadjo/static