fix: updated GCP logo in chaos fault cards

[khushi1310]

fixes #5283

Proposed changes

The GCP logo should replace the existing Litmus logo in all 4 fault cards under the GCP fault category.
The logo should be clearly visible, properly aligned, and consistent with the design style of other category cards.

Types of changes

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• New feature (non-breaking change which adds functionality)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices applies)

Checklist

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• [ x] I have read the CONTRIBUTING doc
• [ x] I have signed the commit for DCO to be passed.
• [ x] Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added necessary docume

ntation (if appropriate)

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