chore(deps): update terraform terraform-google-modules/network/google to v7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
terraform-google-modules/network/google (source)	module	major	~> 6.0 -> ~> 7.0

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Release Notes

terraform-google-modules/terraform-google-network

### [`v7.0.0`](https://togithub.com/terraform-google-modules/terraform-google-network/blob/HEAD/CHANGELOG.md#​700-httpsgithubcomterraform-google-modulesterraform-google-networkcomparev601v700-2023-04-13) [Compare Source](https://togithub.com/terraform-google-modules/terraform-google-network/compare/v6.0.1...v7.0.0) ##### ⚠ BREAKING CHANGES - **TF >= 1.3:** allow optional vars in firewall rules module ([#​438](https://togithub.com/terraform-google-modules/terraform-google-network/issues/438)) - **TPG >=4.25:** add IPv6 support ([#​420](https://togithub.com/terraform-google-modules/terraform-google-network/issues/420)) ##### Features - **TPG >=4.25:** add IPv6 support ([#​420](https://togithub.com/terraform-google-modules/terraform-google-network/issues/420)) ([4470952](https://togithub.com/terraform-google-modules/terraform-google-network/commit/447095261290c25dae760cabfda5f21d941f0826)) ##### Bug Fixes - **TF >= 1.3:** allow optional vars in firewall rules module ([#​438](https://togithub.com/terraform-google-modules/terraform-google-network/issues/438)) ([b188d37](https://togithub.com/terraform-google-modules/terraform-google-network/commit/b188d37aa20a6975b465dde016656e22321b9432))

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