wip(growth): change from with to case

lib/growth/indicators/download.ex

@@ -228,10 +228,12 @@ defmodule Growth.Indicators.Download do
   end
 
   def fetch!(url) do
-    with {:ok, %{status: 200, body: body}} <- Req.get(url) do
+    case Req.get(url) do
+      {:ok, %{status: 200, body: body}} ->
         body
-    else
-      _ -> raise("fetch failed for url #{url}")
+
+      _ ->
+        raise("fetch failed for url #{url}")
     end
   end