Rename subnets for Kubernetes tests

[brettcurtis]

Fixes #51

Summary by CodeRabbit

• Chores
  • Updated environment variables for cluster ID and location.
  • Updated the revision of the pre-commit-terraform repository.
  • Downgraded the 'nori' gem version for compatibility.
• Refactor
  • Modified names of secondary ranges and subnets in GKE configurations for regional consistency.
  • Updated default region values in various configurations for better resource allocation.
• Tests
  • Adjusted expected values in test configurations to align with the updated regional settings.
  • Updated the URL for the inspec_gcp dependency to incorporate latest changes.
• Documentation
  • Enhanced monthly cost estimates display in README for better clarity and generalization.

[coderabbitai[bot]]

Walkthrough

The overall change focuses on updating environmental variables, dependencies, and configurations across several files to reflect new cluster IDs, locations, and versions of tools and dependencies. It includes updating the default region for GKE configurations, downgrading a gem version, and renaming subnets to align with a regional cluster strategy that employs zone-based nodes.

Changes

Files	Change Summary
.github/workflows/kitchen.yml test/test.sh	Updated TF_VAR_gke_hub_memberships with new cluster ID and location values.
.pre-commit-config.yaml	Updated the pre-commit-terraform revision from v1.88.3 to v1.88.4.
Gemfile	Downgraded the 'nori' gem version from 2.7.0 to 2.6.0.
test/fixtures/gke_fleet_host/regional/main.tf test/integration/gke_fleet_host_regional/controls/gcp_inspec.rb	Updated names of secondary ranges and subnets with a new suffix and updated expected subnetwork attribute value.
test/fixtures/gke_fleet_member/regional/variables.tf test/fixtures/gke_fleet_member/regional_istio/variables.tf	Updated the default region value from "us-east4" to "us-east1".
test/integration/shared/inspec.yml	Updated the inspec_gcp dependency URL version from 1.11.94 to 1.11.98.

Assessment against linked issues

Objective	Addressed	Explanation
Rename subnets for Kubernetes tests to reflect a regional cluster with zone-based nodes. (#51)	✅

Possibly related issues

• Issue osinfra-io/google-cloud-kitchen-terraform#86: This issue directly relates to the changes made in the PR, as it discusses renaming subnets for Kubernetes tests to reflect a regional cluster with zone-based nodes, which is addressed by the updates in subnet names and configurations.

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[infracost[bot]]

💰 Infracost report

Monthly cost will not change

Cost details (includes details of unsupported resources)

``` ────────────────────────────────── 50 cloud resources were detected: ∙ 11 were estimated ∙ 34 were free ∙ 5 are not supported yet, rerun with --show-skipped to see details ```

Governance checks

🟢 51 passed

50 FinOps policies and 1 Tagging policy passed.

_{View report in Infracost Cloud. This comment will be updated when code changes.}

[brettcurtis]

@coderabbitai review