Fix ci install to allow prerelease (#12449)

scripts/ci/ci_install_dependency.sh

@@ -86,7 +86,7 @@ else
     export UV_SYSTEM_PYTHON=true
 
     PIP_CMD="uv pip"
-    PIP_INSTALL_SUFFIX="--index-strategy unsafe-best-match"
+    PIP_INSTALL_SUFFIX="--index-strategy unsafe-best-match --prerelease allow"
 
     # Clean up existing installations
     $PIP_CMD uninstall sgl-kernel sglang || true

sgl-kernel/python/sgl_kernel/fused_moe.py

@@ -2,7 +2,7 @@ import functools
 from typing import Optional
 
 import torch
-from sgl_kernel import silu_and_mul
+from sgl_kernel.elementwise import silu_and_mul
 
 
 def get_scalar_type(num_bits: int, has_zp: bool):