[XPU][CI/Release][2/N] add triton shim in xpu requirements (#51935)

Signed-off-by: Kunshang Ji <kunshang.ji@intel.com>

.pre-commit-config.yaml

@@ -126,7 +126,6 @@ repos:
         -c, requirements/xpu.txt,
         -o, requirements/test/xpu.txt,
         --index-strategy, unsafe-best-match,
-        --torch-backend, xpu,
         --python-platform, x86_64-manylinux_2_39,
         --python-version, "3.12",
       ]

requirements/test/xpu.txt

@@ -1,5 +1,5 @@
 # This file was autogenerated by uv via the following command:
-#    uv pip compile requirements/test/xpu.in -c requirements/xpu.txt -o requirements/test/xpu.txt --index-strategy unsafe-best-match --torch-backend xpu --python-platform x86_64-manylinux_2_39 --python-version 3.12
+#    uv pip compile requirements/test/xpu.in -c requirements/xpu.txt -o requirements/test/xpu.txt --index-strategy unsafe-best-match --python-platform x86_64-manylinux_2_39 --python-version 3.12
 absl-py==2.4.0
     # via
     #   -r requirements/test/xpu.in
@@ -948,10 +948,14 @@ transformers==5.15.0
     #   compressed-tensors
     #   sentence-transformers
     #   xgrammar
-triton==3.7.1
-    # via xgrammar
+triton==3.7.2+xpu
+    # via
+    #   -c requirements/xpu.txt
+    #   xgrammar
 triton-xpu==3.7.2
-    # via torch
+    # via
+    #   torch
+    #   triton
 typepy==1.3.4
     # via
     #   dataproperty

requirements/xpu.txt

@@ -1,5 +1,7 @@
 # Common dependencies
 -r common.txt
+--extra-index-url=https://wheels.vllm.ai/xpu/
+triton==3.7.2+xpu
 
 ray>=2.9
 cmake>=3.26.1