Fixes to provider config code unit tests

[SarahFrench]

Fixes for unit tests that got to the downstream: https://github.com/hashicorp/terraform-provider-google/actions/runs/6031579309/job/16365486685

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 4 insertions(+), 4 deletions(-))
Terraform Beta: Diff ( 1 file changed, 4 insertions(+), 4 deletions(-))

[SarahFrench]

Thanks! I can see the unit test checks have passed but I'll lets the other checks finish before merging

[modular-magician]

Tests analytics

Total tests: 3008
Passed tests 2712
Skipped tests: 296
Affected tests: 0

$\textcolor{green}{\textsf{All tests passed in REPLAYING mode.}}$
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