[CI] Avoid lint and ut for PR push (#5762)

1. Don't run lint and ut again once the PR is merged to save CI resource
2. Update codecov every 4 hour
3. rename `model_downloader` to suitable name
4. update schedule job to better time.

- vLLM version: v0.13.0
- vLLM main:
2f4e6548ef

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

.github/workflows/pr_test_light.yaml

@@ -18,9 +18,6 @@
 name: E2E-Light
 
 on:
-  push:
-    branches:
-      - 'main'
   pull_request:
     branches:
       - 'main'
@@ -80,82 +77,15 @@ jobs:
     name: unit test
     # only trigger unit test after lint passed and the change is e2e and ut related.
     if: ${{ needs.lint.result == 'success' && (needs.changes.outputs.e2e_tracker == 'true' || needs.changes.outputs.ut_tracker == 'true') }}
-    runs-on: linux-amd64-cpu-16-hk
-    container:
-      # fixme: vllm-ascend install failed with 8.3.rc2 on github action
-      image: quay.nju.edu.cn/ascend/cann:8.2.rc2-910b-ubuntu22.04-py3.11
-      env:
-        VLLM_LOGGING_LEVEL: ERROR
-        VLLM_USE_MODELSCOPE: True
-        SOC_VERSION: ascend910b1
-        MAX_JOBS: 4
     strategy:
       matrix:
         vllm_version: [2f4e6548efec402b913ffddc8726230d9311948d, v0.13.0]
-
-    steps:
-      - name: Install packages
-        run: |
-          sed -Ei 's@(ports|archive).ubuntu.com@cache-service.nginx-pypi-cache.svc.cluster.local:8081@g' /etc/apt/sources.list
-          pip config set global.index-url http://cache-service.nginx-pypi-cache.svc.cluster.local/pypi/simple
-          pip config set global.trusted-host cache-service.nginx-pypi-cache.svc.cluster.local
-          apt-get update -y
-          apt-get install -y python3-pip git vim wget net-tools gcc g++ cmake libnuma-dev curl gnupg2
-
-      - name: Checkout vllm-project/vllm repo
-        uses: actions/checkout@v6
-        with:
-          repository: vllm-project/vllm
-          ref: ${{ matrix.vllm_version }}
-          path: ./vllm-empty
-
-      - name: Install vllm-project/vllm from source
-        working-directory: ./vllm-empty
-        run: |
-          VLLM_TARGET_DEVICE=empty python3 -m pip install . --extra-index https://download.pytorch.org/whl/cpu/
-          python3 -m pip uninstall -y triton
-
-      - name: Checkout vllm-project/vllm-ascend repo
-        uses: actions/checkout@v6
-
-      - name: Install vllm-project/vllm-ascend
-        run: |
-          export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi
-          export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/x86_64-linux/devlib
-          python3 -m pip install -v . --extra-index https://download.pytorch.org/whl/cpu/
-          python3 -m pip install -r requirements-dev.txt --extra-index https://download.pytorch.org/whl/cpu/
-
-      - name: Install Ascend toolkit & triton_ascend
-        shell: bash -l {0}
-        run: |
-          BISHENG_NAME="Ascend-BiSheng-toolkit_aarch64_20260105.run"
-          BISHENG_URL="https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/${BISHENG_NAME}"
-          wget -O "${BISHENG_NAME}" "${BISHENG_URL}" && chmod a+x "${BISHENG_NAME}" && "./${BISHENG_NAME}" --install && rm "${BISHENG_NAME}"
-          export PATH=/usr/local/Ascend/tools/bishengir/bin:$PATH
-          python3 -m pip install -i https://test.pypi.org/simple/ triton-ascend==3.2.0.dev20260105
-
-      - name: Run unit test
-        env:
-          VLLM_WORKER_MULTIPROC_METHOD: spawn
-          TORCH_DEVICE_BACKEND_AUTOLOAD: 0
-        run: |
-          export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/x86_64-linux/devlib
-          pytest -sv --cov --cov-report=xml:unittests-coverage.xml tests/ut \
-            --ignore tests/ut/model_loader/netloader/test_netloader_elastic.py \
-            --ignore tests/ut/kv_connector/test_remote_prefill_lifecycle.py \
-            --ignore tests/ut/kv_connector/test_remote_decode_lifecycle.py \
-            --ignore tests/ut/core/test_scheduler_dynamic_batch.py
-
-      - name: Upload coverage to Codecov
-        # only upload coverage when commits merged
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-        uses: codecov/codecov-action@v5
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-        with:
-          flags: unittests
-          name: vllm-ascend
-          verbose: true
+    uses: ./.github/workflows/_unit_test.yaml
+    with:
+      vllm: ${{ matrix.vllm_version }}
+      runner: linux-amd64-cpu-16-hk
+      image: quay.nju.edu.cn/ascend/cann:8.2.rc2-910b-ubuntu22.04-py3.11
+      type: pr
 
   e2e-light:
     name: e2e-light