feat: Update CIS SDK — CIS_Frontend_API_Spec-Mtls (#779236)

[sirijaibm]

PR summary

Auto-generated Java SDK update from OpenAPI spec.

Test Results:
Integration test files updated (not run — require live credentials):

• modules/mtls/src/test/java/com/ibm/cloud/networking/mtls/v1/MtlsIT.java

PR Checklist

Please make sure that your PR fulfills the following requirements:

• The commit message follows the Angular Commit Message Guidelines.
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• New tests
• Build/CI related changes
• Documentation content changes
• Other (please describe)

What is the current behavior?

SDK generated from previous version of the OpenAPI spec.

What is the new behavior?

SDK regenerated from updated OpenAPI spec with new/changed operations.

Does this PR introduce a breaking change?

• Yes
• No

Other information

This PR was automatically generated by the SDK Automation tool.