Run deferred expectations after all hooks

spec/rspec/core/before_and_after_hooks_spec.cr

@@ -104,8 +104,7 @@ Spectator.describe "`before` and `after` hooks" do
         @@order << :after_all
       end
 
-      xit "gets run in order" do
-        # TODO: The after_all hook isn't evaluated yet because the group hasn't "finished."
+      it "gets run in order" do
         expect(@@order).to_eventually eq(%i[before_all before_each after_each after_all])
       end
     end

src/spectator/runnable_example.cr

@@ -19,6 +19,7 @@ module Spectator
       ResultCapture.new.tap do |result|
         context.run_before_hooks(self)
         run_example(result)
+        @finished = true
         context.run_after_hooks(self)
         run_deferred(result) unless result.error
       end