Upgrade drone server to latest

Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # helm_release.drone_runner will be updated in-place
  ~ resource "helm_release" "drone_runner" {
        id                         = "runner"
        name                       = "runner"
      ~ version                    = "0.1.8" -> "0.6.0"
        # (26 unchanged attributes hidden)

        set_sensitive {
          # At least one attribute in this block is (or was) sensitive,
          # so its contents will not be displayed.
        }
    }

Plan: 0 to add, 1 to change, 0 to destroy.

drone.tf

@@ -3,6 +3,7 @@ resource "helm_release" "drone_server" {
   name             = "drone"
   chart            = "drone"
   repository       = "https://charts.drone.io"
+  version          = "0.6.4"
   namespace        = kubernetes_namespace.server.metadata.0.name
   create_namespace = false
 
@@ -63,4 +64,4 @@ resource "helm_release" "drone_server" {
 resource "random_password" "drone_rpc_secret" {
   special = true
   length  = 32
-}
+}