--help fail on config json error

[ATorrise]

What It Does Ensures users can still access the help documentation and version details, even when config files contain errors.

How to Test

1. Create a zowe.config.json file with invalid JSON or syntax errors.
2. Run a Zowe CLI command with the --help flag, ie: zowe zosmf --help
3. Confirm that the help text is displayed with a warning about the invalid JSON.
4. Run the same command without the --help flag to ensure it still fails as expected with a JSON error.

Review Checklist I certify that I have:

• [x] tested my changes
• [x] added/updated automated tests
• [x] updated the changelog
• [x] followed the contribution guidelines