Fix typing imports in fuzzer script (#85)

Co-authored-by: automergerpr-permission-manager[bot] <190534181+automergerpr-permission-manager[bot]@users.noreply.github.com>

Author: tothtamas28

p-token/test-properties/run-fuzzer.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env -S uv --project ./mir-semantics/kmir run
 
+from __future__ import annotations
+
 import logging
 import re
 import sys