chore(deps): Update Terraform terraform-google-modules/network/google to v8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
terraform-google-modules/network/google (source)	module	major	~> 7.0 -> ~> 8.0

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Release Notes

terraform-google-modules/terraform-google-network (terraform-google-modules/network/google)

v8.0.0

Compare Source

⚠ BREAKING CHANGES

• bumping tf to v1.3 for fabric-net-firewall (#​515)
• deps: Update Terraform terraform-google-modules/cloud-dns/google to v5 (#​489)

Bug Fixes

• bumping tf to v1.3 for fabric-net-firewall (#​515) (c08ea5f)
• deps: Update Terraform terraform-google-modules/cloud-dns/google to v5 (#​489) (adb3e2a)
• network-firewall-policy not able to use target_secure_tags (#​514) (a5418b4)

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[dpebot]

/gcbrun