Try different in_interactive_session rule

Check for interactive sessions using sys.ps1 rather than
__main__.__file__, as the latter was not working on github CI

snakebids/io/console.py

@@ -43,6 +43,7 @@
 from __future__ import annotations
 
 import functools as ft
+import sys
 from shutil import get_terminal_size
 
 
@@ -97,11 +98,7 @@ def in_interactive_session() -> bool:
     """
 
     def check_main() -> bool:
-        try:
-            import __main__ as main
-        except ModuleNotFoundError:
-            return False
-        return not hasattr(main, "__file__")
+        return hasattr(sys, "ps1")
 
     try:
         # error: Name '__IPYTHON__' is not defined