Update IP address module within VPC module

[tpdownes]

• Support terraform-provider-google v6
• Adds support for labels on regional IP addresses

Without this update, any blueprint that uses the vpc module will default to TPG 5.44.2 instead of 6.8.0.

Submission Checklist

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Please take the following actions before submitting this pull request.

• Fork your PR branch from the Toolkit "develop" branch (not main)
• Test all changes with pre-commit in a local branch #
• Confirm that "make tests" passes all tests
• Add or modify unit tests to cover code changes
• Ensure that unit test coverage remains above 80%
• Update all applicable documentation
• Follow Cluster Toolkit Contribution guidelines #

[RachaelSTamakloe]

I believe some of the golden copy test files need to be updated to reflect your recent changes.

[tpdownes]

The tools/validate_configs/test_configs/test_outputs.yaml blueprint is failing in ways that make clear we need to update the vm-instance module as well as the new-project module. I will mark this draft until we complete that work.