Version bump

terraform.tf

@@ -2,8 +2,8 @@ terraform {
   required_providers {
     digitalocean = {
       source  = "digitalocean/digitalocean"
-      version = ">= 2.20.0"
+      version = ">= 2.28.1"
     }
   }
-  required_version = ">= 1.2.3"
+  required_version = ">= 1.5.2"
 }