refactor assert_sql query to reuse capture_sql

set assert_sql to reuse the capture_sql method from above
instead of repeating the code

in response to comments on issue #14546

activerecord/test/cases/test_case.rb

@@ -26,9 +26,7 @@ module ActiveRecord
     end
 
     def assert_sql(*patterns_to_match)
-      SQLCounter.clear_log
-      yield
-      SQLCounter.log_all
+      capture_sql { yield }
     ensure
       failed_patterns = []
       patterns_to_match.each do |pattern|