Fix the failing auth login command due to missing credentials

[rdimitrov]

Summary

The following PR fixes the auth login command which was failing every time one logs in.

This was caused by the fact that we were passing a gRPC connection through the wrapper which did not had the credentials embedded in it (the login step happens after that). The fix is to ignore the conn from the wrapper and recreate it after the login step is completed. This way the credentials are properly loaded.

Fixes: #4988

Change Type

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• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

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Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 54.515% (-0.007%) from 54.522%
when pulling 840fea4 on fix-login
into 8b25d8c on main.