Merge pull request #14 from 3scale-sre/feat/update-vault-provider

feat: update vault provider mayor

Author: 3scale-robot

versions.tf

@@ -11,7 +11,7 @@ terraform {
     }
     vault = {
       source  = "hashicorp/vault"
-      version = "~> 3.0"
+      version = "~> 4.0"
     }
   }
 }