swap proxmox backend from s3 to gitlab http

infra/terraform/proxmox/backend.tf

@@ -1,14 +1,11 @@
 terraform {
-  backend "s3" {
-    bucket                      = "terraform-state" # Name of the MinIO bucket
-    key                         = "proxmox/terraform.tfstate" # Path to the state file in the bucket
-    endpoint                    = var.minio_endpoint # MinIO API endpoint
-    access_key                  = var.minio_access_key # MinIO access key
-    secret_key                  = var.minio_secret_key # MinIO secret key
-    region                      = "us-east-1" # Arbitrary region (MinIO ignores this)
-    skip_credentials_validation = true # Skip AWS-specific credential checks
-    skip_metadata_api_check     = true # Skip AWS metadata API checks
-    skip_region_validation      = true # Skip AWS region validation
-    use_path_style              = true # Use path-style URLs[](http://<host>/<bucket>)
+  backend "http" {
+    address        = var.http_address
+    lock_address   = var.http_lock_address
+    unlock_address = var.http_lock_address
+    lock_method    = "POST"
+    unlock_method  = "DELETE"
+    retry_wait_min = 5
+
   }
-}
+}