use latest sgl-kernel for mla test (#4222)

.github/workflows/pr-test-sgl-kernel.yml

@@ -95,8 +95,39 @@ jobs:
         run: |
           pip3 uninstall sgl-kernel -y
 
+  mla-test:
+    if: github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request'
+    needs: build-wheels
+    runs-on: 1-gpu-runner
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: sgl-kernel/dist/
+          merge-multiple: true
+          pattern: wheel-*
+
+      - name: Install
+        run: |
+          bash scripts/ci_install_dependency.sh
+          pip3 uninstall sgl-kernel -y || true
+          pip3 install sgl-kernel/dist/*whl --force-reinstall --no-deps
+          pip3 list | grep sgl-kernel
+
+      - name: Run test
+        timeout-minutes: 30
+        run: |
+          cd test/srt
+          python3 test_mla_deepseek_v3.py
+
+      - name: Uninstall dependencies
+        run: |
+          pip3 uninstall sgl-kernel -y
+
   finish:
-    needs: [unit-test, lint]
+    needs: [unit-test, mla-test, lint]
     runs-on: ubuntu-latest
     steps:
       - name: Finish