feat(deps): Update Terraform Google Provider to v6 (major) (#191)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Andrew Peabody <andrewpeabody@google.com>

Author: renovate[bot]

examples/gh-runner-gke-dind-rootless/versions.tf

@@ -16,15 +16,11 @@
 
 terraform {
   required_providers {
-    # TODO: undo version constraint pending provider bug
-    # https://github.com/GoogleCloudPlatform/magic-modules/pull/11688
     google = {
-      source  = "hashicorp/google"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google"
     }
     google-beta = {
-      source  = "hashicorp/google-beta"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google-beta"
     }
     kubernetes = {
       source  = "hashicorp/kubernetes"

examples/gh-runner-gke-dind/versions.tf

@@ -16,15 +16,11 @@
 
 terraform {
   required_providers {
-    # TODO: undo version constraint pending provider bug
-    # https://github.com/GoogleCloudPlatform/magic-modules/pull/11688
     google = {
-      source  = "hashicorp/google"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google"
     }
     google-beta = {
-      source  = "hashicorp/google-beta"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google-beta"
     }
     kubernetes = {
       source  = "hashicorp/kubernetes"

examples/gh-runner-gke-simple/versions.tf

@@ -16,15 +16,11 @@
 
 terraform {
   required_providers {
-    # TODO: undo version constraint pending provider bug
-    # https://github.com/GoogleCloudPlatform/magic-modules/pull/11688
     google = {
-      source  = "hashicorp/google"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google"
     }
     google-beta = {
-      source  = "hashicorp/google-beta"
-      version = ">= 4.3.0, < 5.44"
+      source = "hashicorp/google-beta"
     }
     kubernetes = {
       source  = "hashicorp/kubernetes"