Modify Dockerfile to Download Installer from OSDC for Production Use

[mfujimakjp]

The current Dockerfile for WebLogic Server instructs users to download the Generic installer from the Oracle Technology Network (OTN):
(for example) https://github.com/oracle/docker-images/blob/main/OracleWebLogic/dockerfiles/14.1.1.0/Dockerfile.generic-8
Download the Generic installer from http://www.oracle.com/technetwork/middleware/weblogic/downloads/wls-for-dev-1703574.html

However, for production use, it is necessary to download the installer from the Oracle Software Delivery Cloud (OSDC) with a proper product license.

To ensure compliance with licensing requirements, please modify the Dockerfile to instruct users to download the installer from OSDC for production environments. This will help prevent any licensing issues and ensure that users are following the correct procedures for production deployments.

Thank you for your attention to this matter.