chore(deps): add terraform to renovate dependency coverage

The deploy-boundary check interpolates `var.aws_account_id` and `var.environment`. Terraform only allows other variables inside `validation` from 1.9.0+.

CI already runs against `1.9.8` so `versions.tf` setting version as `>=1.7.0` is a breaking finding

.github/renovate.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "enabledManagers": ["nuget", "npm", "github-actions"],
+  "enabledManagers": ["nuget", "npm", "github-actions", "terraform"],
   "minimumReleaseAge": "3 days",
   "internalChecksFilter": "strict",
   "packageRules": [
@@ -17,6 +17,12 @@
       "matchUpdateTypes": ["minor", "patch"],
       "groupName": "nuget minor and patch"
     },
+    {
+      "description": ["Group non-major Terraform updates"],
+      "matchManagers": ["terraform"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "terraform minor and patch"
+    },
     {
       "description": [
         "Keep ASP.NET Core, EF Core, and dotnet-ef majors together"

terraform/live/dev/versions.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.7.0"
+  required_version = ">= 1.9.0"
 
   required_providers {
     aws = {

terraform/live/staging/versions.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.7.0"
+  required_version = ">= 1.9.0"
 
   required_providers {
     aws = {

terraform/live/tf-poc/versions.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.7.0"
+  required_version = ">= 1.9.0"
 
   required_providers {
     aws = {