Fix Windows release check encoding in CI

Author: Codex

.github/workflows/release-check.yml

@@ -8,6 +8,9 @@ on:
 jobs:
   source-check:
     runs-on: windows-latest
+    env:
+      PYTHONUTF8: "1"
+      PYTHONIOENCODING: "utf-8"
     steps:
       - name: Check out repository
         uses: actions/checkout@v4

tools/release_check.py

@@ -12,6 +12,20 @@
 import sys
 from pathlib import Path
 
+
+def _configure_utf8_stdio() -> None:
+    for stream_name in ("stdout", "stderr"):
+        stream = getattr(sys, stream_name, None)
+        if stream is None or not hasattr(stream, "reconfigure"):
+            continue
+        try:
+            stream.reconfigure(encoding="utf-8", errors="replace")
+        except Exception:
+            pass
+
+
+_configure_utf8_stdio()
+
 ROOT = Path(__file__).resolve().parents[1]
 if str(ROOT) not in sys.path:
     sys.path.insert(0, str(ROOT))