Pin colored_traceback < 0.4 for Python 2

Author: peace-maker

pyproject.toml

@@ -53,7 +53,8 @@ dependencies = [
     "unicorn>=2.0.1",
     "six>=1.12.0",
     "rpyc",
-    "colored_traceback",
+    "colored_traceback<0.4; python_version < '3'",
+    "colored_traceback; python_version >= '3'",
     "pathlib2; python_version < '3.4'",
     "unix-ar; python_version >= '3'",
     "zstandard",