Fix bad spec wording

Author: deivid-rodriguez

bundler/spec/install/gems/resolving_spec.rb

@@ -305,7 +305,7 @@
         end
       end
 
-      context "in a transitive dependencies in a lockfile" do
+      context "with transitive dependencies in a lockfile" do
         before do
           build_repo2 do
             build_gem "rubocop", "1.28.2" do |s|