Fix tgc unit test

[zli82016]

Unit test passed locally.

Release Note Template for Downstream PRs (will be copied)

[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.

google provider: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))
google-beta provider: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))

[modular-magician]

Tests analytics

Total tests: 144
Passed tests: 114
Skipped tests: 30
Affected tests: 0

Click here to see the affected service packages

• resourcemanager

$\textcolor{green}{\textsf{All tests passed!}}$

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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-google-conversion: Diff ( 1 file changed, 1 deletion(-))

[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-google-conversion: Diff ( 1 file changed, 1 deletion(-))