Debug: log caller_locations frames in warning.rb

Temporary debug logging to compare frame layout across
Ruby 3.2/3.3/3.4 + Rails 7.2/8.0 matrix in CI.

Author: Irving-Betterment

lib/uncruft/warning.rb

@@ -8,6 +8,7 @@ def warn(*args, **kwargs)
       str = args[0]
 
       if str =~ DEPRECATION_PATTERN # rubocop:disable Performance/RegexpMatch
+        $stderr.puts caller_locations(0, 10).map.with_index { |cl, i| "WARNING FRAME #{i}: #{cl}" }.join("\n") # rubocop:disable Style/StderrPuts
         cloc = find_caller_location(str, caller_locations(1..5))
         message = strip_caller_info(str, cloc).strip
         Uncruft.deprecator.warn(message)