chore(deps): update terraform google to v6.12.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
google (source)	required_provider	minor	6.11.2 -> 6.12.0

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Release Notes

hashicorp/terraform-provider-google (google)

### [`v6.12.0`](https://redirect.github.com/hashicorp/terraform-provider-google/blob/HEAD/CHANGELOG.md#6120-Unreleased) [Compare Source](https://redirect.github.com/hashicorp/terraform-provider-google/compare/v6.11.2...v6.12.0)

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