SV-132953 Update credentials for new Oracle 18

templates/backup.sh.j2

@@ -8,4 +8,4 @@ NOW=$(date +"%Y-%b-%d")
 dumpName="/var/backups/oracle/"$schemaName"_"$NOW".dmp"
 logName="/var/backups/oracle/"$schemaName"_"$NOW".log"
 
-$ORACLE_HOME/bin/exp system/{{ oracle_password }} FILE=$dumpName OWNER=$schemaName LOG=$logName STATISTICS=None
+$ORACLE_HOME/bin/exp system//Oracle18@localhost/xepdb1 FILE=$dumpName OWNER=$schemaName LOG=$logName STATISTICS=None