Exclude .pyc files from the computed digest in the jit stencils

Author: alonme

Tools/jit/_targets.py

@@ -72,6 +72,9 @@ def _compute_digest(self) -> str:
         hasher.update((self.pyconfig_dir / "pyconfig.h").read_bytes())
         for dirpath, _, filenames in sorted(os.walk(TOOLS_JIT)):
             for filename in filenames:
+                # Exclude .pyc files from digest computation to ensure reproducible builds.
+                if filename.endswith(".pyc"):
+                    continue
                 hasher.update(pathlib.Path(dirpath, filename).read_bytes())
         return hasher.hexdigest()