chore(storage): Changing hwo the gcs client is generated

[Jacobbrewer1]

Describe your changes

Passing the client back rather than setting a global variable.

Checklist before requesting a review

• I have performed a self-review of my code.
• For new code, I have added tests that prove my fix is effective or that my feature works.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• I have implemented monitoring for my changes if applicable.

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