Use match_array instead of sorting arrays

It does the same thing, and it's easier to read.

spec/lib/acts_as_paranoid_aliases_spec.rb

@@ -9,7 +9,7 @@ describe "Paranoid methods" do
       debate3 = create(:debate)
       debate4 = create(:debate)
 
-      expect(Debate.all.sort).to eq([debate1, debate2, debate3, debate4].sort)
+      expect(Debate.all).to match_array [debate1, debate2, debate3, debate4]
 
       Debate.hide_all [debate1, debate2, debate4].map(&:id)
 
@@ -30,7 +30,7 @@ describe "Paranoid methods" do
 
       Debate.restore_all [debate1, debate3].map(&:id)
 
-      expect(Debate.all.sort).to eq([debate1, debate2, debate3].sort)
+      expect(Debate.all).to match_array [debate1, debate2, debate3]
     end
   end