Add provider = google-beta to beta only test

[modular-magician]

Added provider = google-beta to beta-only test

https://ci-oss.hashicorp.engineering/test/8151353206230044480?currentProjectId=GoogleCloudBeta&branch=%3Cdefault%3E&expandedTest=id%3A427918%2Cbuild%3A%28id%3A319513%29

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Derived from GoogleCloudPlatform/magic-modules#6345