Address intermittent CI failure due to non-determined sort order

https://buildkite.com/rails/rails/builds/75259#9d1a409b-e2b0-4d0b-a38e-71cfa715c779/1068-1079

Author: kamipo

activerecord/test/cases/associations/inner_join_association_test.rb

@@ -16,8 +16,8 @@ class InnerJoinAssociationTest < ActiveRecord::TestCase
            :taggings, :tags, :people
 
   def test_construct_finder_sql_applies_aliases_tables_on_association_conditions
-    result = Author.joins(:thinking_posts, :welcome_posts).to_a
-    assert_equal authors(:david), result.first
+    result = Author.joins(:thinking_posts, :welcome_posts).first
+    assert_equal authors(:david), result
   end
 
   def test_construct_finder_sql_does_not_table_name_collide_on_duplicate_associations

activerecord/test/cases/associations/left_outer_join_association_test.rb

@@ -22,8 +22,8 @@ def test_merging_multiple_left_joins_from_different_associations
   end
 
   def test_construct_finder_sql_applies_aliases_tables_on_association_conditions
-    result = Author.left_outer_joins(:thinking_posts, :welcome_posts).to_a
-    assert_equal authors(:david), result.first
+    result = Author.left_outer_joins(:thinking_posts, :welcome_posts).first
+    assert_equal authors(:david), result
   end
 
   def test_construct_finder_sql_does_not_table_name_collide_on_duplicate_associations