fix(cheatcodes): enforce exit code check for ffiCall

[tomasandroil]

• Added a check for output.exitCode != 0 in ffiCall.
• If the exit code is non-zero, the error is returned with the stderr content.
• The existing behavior for tryFfiCall remains unchanged (no exit code enforcement).

This makes ffiCall behavior safer and better aligned with expected shell semantics.

[tomasandroil]

Quick reminder about PR #10571 (“fix(cheatcodes): enforce exit code check for ffiCall”):

• Now returns an error if ffiCall exits with a non-zero code, including stderr output
• Preserves existing tryFfiCall behavior (no exit code enforcement)

This aligns ffiCall with standard shell semantics. Let me know if you need any changes! 🔍

[DaniPopes]

Thanks for the contribution, however this is superseded by #11101 which also adds a test.