chore: bump sglang-kernel version to 0.4.1.post1 (#23733)

Co-authored-by: sglang-bot <sglang-bot@users.noreply.github.com>
Co-authored-by: Kangyan Zhou <zky314343421@gmail.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

python/pyproject.toml

@@ -59,7 +59,7 @@ dependencies = [
   "sentencepiece",
   "setproctitle",
   "flash-attn-4>=4.0.0b9",
-  "sglang-kernel==0.4.1",
+  "sglang-kernel==0.4.1.post1",
   "soundfile==0.13.1",
   "tiktoken",
   "timm==1.0.16",