fix: use PM_API_TOKEN_ID/SECRET env vars directly

- Remove token from Terraform variables (provider reads from env)
- Update workflows to set PM_API_TOKEN_ID and PM_API_TOKEN_SECRET directly
- Provider now reads credentials from environment variables

terraform/main.tf

@@ -8,10 +8,8 @@ terraform {
 }
 
 provider "proxmox" {
-  pm_api_url          = var.pm_api_url
-  pm_api_token_id     = var.pm_api_token_id
-  pm_api_token_secret = var.pm_api_token_secret
-  pm_tls_insecure     = true
+  pm_api_url      = var.pm_api_url
+  pm_tls_insecure = true
 }
 
 resource "proxmox_vm_qemu" "alpacas" {