Move pygments.token import to top of file

Co-authored-by: Emery Berger <emeryberger@users.noreply.github.com>

Author: github-actions[bot]

src/chatdbg/chatdbg_pdb.py

@@ -12,6 +12,7 @@
 from pathlib import Path
 
 import IPython
+from pygments.token import Token
 
 import pdb
 
@@ -474,8 +475,6 @@ def _hidden_predicate(self, frame):
 
     def print_stack_trace(self, context=None, locals=None):
         # override to print the skips into stdout instead of stderr and to add locals
-        from pygments.token import Token
-
         if context is None:
             context = self.context
         try: