fix: Updated file encoding for Hieroglyphic characters issue

[hrishikesh-nalawade]

Description

Java 21 (JEP 400) changed the default charset to UTF-8 for stdout/stderr. The z/OS SYSPRINT console expects EBCDIC (IBM-1047) encoding, causing UTF-8 bytes to display incorrectly. The existing -Dlogging.charset.console property only configures Logback's encoder and takes effect after Spring Boot initialization, not at JVM startup.

Changed file encoding from UTF-8 to COMPAT

Linked to #4419
Linked to #4446
Related PR #4482

Type of change

• fix: Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the style guidelines of this project
• PR title conforms to commit message guideline ## Commit Message Structure Guideline
• I have commented my code, particularly in hard-to-understand areas. In JS I did provide JSDoc
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The java tests in the area I was working on leverage @nested annotations
• Any dependent changes have been merged and published in downstream modules