message: Update iter-enum to 1
diff: @@ -31,7 +31,7 @@ boolinator = "2.4.0"
  futures = "0.3"
  indexmap = "1.6.0"
  im-rc = "15.0.0"
  -iter-enum = "0.2.4"
  +iter-enum = "1"
  itertools = "0.9.0"
  pin-project = "1.0.1"
  serde = { version = "1.0.117", features = ["derive"] }
  