Lumosviridi v20 kubernetes updates (#6356)

Updates for v20+ and misc terraform bug fixes. Also refactored to use
terraform variables instead of locals which helps with readability and
ease of use for new users.

Terraform validation is currently passing:
![Screenshot 2024-07-21 at 13 18
37](https://github.com/user-attachments/assets/02aadc2d-d3f6-4e8b-9315-64e25191d9e6)

Additionally added [terraform-docs](https://terraform-docs.io/) to
generate a more helpful README for terraform specific configuration.

Raw K8s manifests were updated with changes for v20+ as well.

---------

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-docker/k8s/terraform/main.tf

@@ -5,32 +5,15 @@ provider "kubernetes" {
   config_path = "~/.kube/config"
 }
 
-#################
-# Global Locals #
-#################
-locals {
-  twentycrm_app_name            = "twentycrm"
-  twentycrm_app_hostname        = "crm.example.com"
-  twentycrm_server_image        = "twentycrm/twenty:v0.10.4"
-  twentycrm_db_image            = "twentycrm/twenty-postgres:v0.10.4"
-  twentycrm_db_pv_path          = "/path/to/mystorage"
-  twentycrm_db_pv_capacity      = "10Gi"
-  twentycrm_db_pvc_requests     = "10Gi"
-  twentycrm_server_pv_path      = "/path/to/mystorage"
-  twentycrm_server_pv_capacity  = "10Gi"
-  twentycrm_server_pvc_requests = "10Gi"
-}
-
 ####################
 # Terraform Config #
 ####################
 terraform {
-  required_version = ">= 1.7.4"
+  required_version = ">= 1.9.2"
   required_providers {
     kubernetes = {
       source  = "hashicorp/kubernetes"
-      version = ">= 2.23.0"
+      version = ">= 2.31.0"
     }
   }
-
 }