fixes missing prefix to remote sql migration file

pull-remote-db.sh

@@ -12,7 +12,7 @@ set +a
 
 mkdir --parents "${PWD}/tmp"
 
-FILENAME="${REMOTE_ARCHIVE_TMP_NAME_PREFIX}".$(date +%Y-%m-%d-%H-%M-%S).sql
+FILENAME="${REMOTE_WP_URL}".$(date +%Y-%m-%d-%H-%M-%S).sql
 
 echo "wp \
   migratedb \