fix: Reactor.run!/4 should not return an :ok tuple.

lib/reactor.ex

@@ -213,7 +213,7 @@ defmodule Reactor do
 
   def run!(reactor, inputs, context, options) do
     case run(reactor, inputs, context, options) do
-      {:ok, value} -> {:ok, value}
+      {:ok, value} -> value
       {:error, reason} -> raise reason
     end
   end

test/reactor/dsl/map_test.exs

@@ -30,7 +30,7 @@ defmodule Reactor.Dsl.MapTest do
   test "it maps over it's inputs" do
     numbers = [0, 2, 4, 6, 8, 10]
 
-    assert {:ok, [0, 4, 8, 12, 16, 20]} =
+    assert [0, 4, 8, 12, 16, 20] =
              Reactor.run!(MapOverNumbersReactor, %{numbers: numbers}, %{}, async?: false)
   end
 end