Reflect Ruby 3.4 stack trace changes

Ruby 3.4 changed the stack frame formatting and that meant it no longer
recognized the Puppet stack frames. This updates the regex for the new
format.

Author: ekohl

lib/puppet/util.rb

@@ -523,7 +523,11 @@ def thinmark
 
   module_function :thinmark
 
-  PUPPET_STACK_INSERTION_FRAME = /.*puppet_stack\.rb.*in.*`stack'/
+  PUPPET_STACK_INSERTION_FRAME = if RUBY_VERSION >= '3.4'
+                                   /.*puppet_stack\.rb.*in.*'Puppet::Pops::PuppetStack\.stack'/
+                                 else
+                                   /.*puppet_stack\.rb.*in.*`stack'/
+                                 end
 
   # utility method to get the current call stack and format it to a human-readable string (which some IDEs/editors
   # will recognize as links to the line numbers in the trace)