Increase timeout for upload DB dump

Hopefully this solves our failing daily builds where we get:

| 06:09:57  curl: (28) Operation timed out after 30000 milliseconds with 0 bytes received

like in https://jenkins.mgm.sipwise.com/job/vmbuilder-ce/192/

From: Michael Prokop <mprokop@sipwise.com>

deployment.sh

@@ -1242,7 +1242,7 @@ upload_db_dump() {
   fi
 
   # upload database dump
-  DB_MD5=$(curl --max-time 30 --connect-timeout 30 -F file=@/dump.db http://jenkins.mgm.sipwise.com:4567/upload)
+  DB_MD5=$(curl --max-time 180 --connect-timeout 30 -F file=@/dump.db http://jenkins.mgm.sipwise.com:4567/upload)
 
   if [[ "$DB_MD5" == $(md5sum /dump.db | awk '{print $1}') ]] ; then
     echo "Upload of database dump went fine."