Fix in DDL scripts errors after adding end_date

After adding end_date column as part of JBPM-9778 there are small and minor issues in the DDL scripts which need to be sorted out.

1. NodeInstanceLog create table, appears twice: https://github.com/kiegroup/jbpm/blob/master/jbpm-db-scripts/src/main/resources/db/ddl-scripts/oracle/oracle-springboot-jbpm-schema.sql#L54-L55
2. Invalid identifier "column" for alter table script in oracle: https://github.com/kiegroup/jbpm/blob/master/jbpm-db-scripts/src/main/resources/db/upgrade-scripts/oracle/jbpm-7.56-to-7.57.sql#L1-L5
3. Same as above but for MS SQL Server: https://github.com/kiegroup/jbpm/blob/master/jbpm-db-scripts/src/main/resources/db/upgrade-scripts/sqlserver/jbpm-7.56-to-7.57.sql#L1-L5