Mark google_iam_oauth_client_credential client_secret as sensitive

[plus-1s]

Fixes hashicorp/terraform-provider-google#22531

iamoauthclient: marked `google_iam_oauth_client_credential.client_secret` as sensitive

[github-actions]

Hello! I am a robot. Tests will require approval from a repository maintainer to run.

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@c2thorn, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

You can help make sure that review is quick by doing a self-review and by running impacted tests locally.

[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 ( 2 files changed, 6 insertions(+))
google-beta provider: Diff ( 2 files changed, 6 insertions(+))

[modular-magician]

Tests analytics

Total tests: 19
Passed tests: 19
Skipped tests: 0
Affected tests: 0

Click here to see the affected service packages

• iamworkforcepool

🟢 All tests passed!

View the build log