[rubygems/rubygems] Fix typo

https://github.com/rubygems/rubygems/commit/64e7a2656a

spec/bundler/resolver/basic_spec.rb

@@ -100,7 +100,7 @@ RSpec.describe "Resolving" do
   end
 
   it "raises an exception if a child dependency is not resolved" do
-    @index = a_unresovable_child_index
+    @index = a_unresolvable_child_index
     dep "chef_app_error"
     expect do
       resolve

spec/bundler/support/indexes.rb

@@ -304,7 +304,7 @@ module Spec
       end
     end
 
-    def a_unresovable_child_index
+    def a_unresolvable_child_index
       build_index do
         gem "json", %w[1.8.0]