fix: Use Exception instead of ImportError for readline setup

Signed-off-by: shbhmexe <shubhushukla586@gmail.com>

Author: shbhmexe

SU2_PY/SU2/__init__.py

@@ -28,5 +28,5 @@ class DivergenceFailure(EvaluationFailure):
         readline.parse_and_bind("bind ^I rl_complete")
     else:
         readline.parse_and_bind("tab: complete")
-except ImportError:
+except Exception:
     pass  # readline is optional, continue without it