[Enhancement] Ensure graceful termination if weak/no initial admin password set

[derek-ho]

Is your feature request related to a problem?
Currently, all distributions are picking up the default admin credentials changes successfully in both 3.0.0 and 2.12.0. However there is still a lingering issue - if either a weak or no initial admin password is set, the install scripts from the build repo side keep executing, ending up failing at a later point (when the certs are not found). This is a bad user experience. Instead, we should gracefully fail install execution as soon as we detect weak/no initial admin password. This will be more clear as to the reason why the installation script failed.

[derek-ho]

This issue will be closed with the merging of:

• Updates tar distribution to conform to changes in install demo configuration script in security plugin opensearch-build#4250 (tar)
• Updates Docker and windows distribution build files to reflect to changes in admin user setup opensearch-build#4274 (docker/windows)

Still pending decision on graceful termination of rpm/deb distribution:

• [Decision Issue] User Experience for RPM/DEB distributions with default admin credential changes #3916

[stephen-crawford]

Closing this since the linked tasks are completed.