fix: failsafe on gcp & gsuite

[jychp]

Summary

When calling cartography without arguments, we should have a failsafe strategy, especialy modules should be skipped when arguments/settings are missing.

This PR fix 2 errors:

• gcp intel UnboundLocalError uncaught error

UnboundLocalError: cannot access local variable 'credentials' where it is not associated with a value

• gsuite intel TypeError uncaught error

TypeError: expected str, bytes or os.PathLike object, not NoneType

Related issues or links

N/A

[Copilot]

Pull Request Overview

This PR introduces failsafe strategies to handle missing configurations during GSuite and GCP ingestions to prevent runtime errors.

• For GSuite ingestion, the code now logs a warning and skips ingestion if the configuration file is missing or invalid.
• For GCP ingestion, the credentials function is updated to appropriately return None on failure, and ingestion is skipped with a warning.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
cartography/intel/gsuite/init.py	Added failsafe condition to log and skip GSuite ingestion when the config file is missing or invalid.
cartography/intel/gcp/init.py	Modified get_gcp_credentials to return Optional and added a warning to skip ingestion when credentials are absent.