[Bugfix] install trition for test_custom_op (#5112)

### What this PR does / why we need it?
1. install trition for test_custom_op
2. tests/e2e/nightly/ops test timeout, set timeout-minutes let it test
over:

https://github.com/vllm-project/vllm-ascend/actions/runs/20326482497/job/58392757707?pr=5112
3. ignore test_dispatch_ffn_combine until it is fixed @kiscad 

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

Signed-off-by: hfadzxy <starmoon_zhang@163.com>

.github/workflows/_e2e_nightly_single_node.yaml

@@ -54,6 +54,7 @@ jobs:
   e2e-nightly:
     name: ${{ inputs.tests }}
     runs-on: ${{ inputs.runner }}
+    timeout-minutes: 600
     container:
       image: ${{ inputs.image }}
     steps:
@@ -126,6 +127,14 @@ jobs:
           pip install custom_ops-1.0-cp311-cp311-linux_aarch64.whl
           . /usr/local/Ascend/ascend-toolkit/set_env.sh
 
+      - name: Install triton-ascend
+        if: ${{ inputs.name == 'test_custom_op' }}
+        shell: bash -l {0}
+        run: |
+          . /usr/local/Ascend/ascend-toolkit/8.3.RC2/bisheng_toolkit/set_env.sh
+          wget https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/triton_ascend-3.2.0.dev2025110717-cp311-cp311-manylinux_2_27_aarch64.whl
+          pip install triton_ascend-3.2.0.dev2025110717-cp311-cp311-manylinux_2_27_aarch64.whl
+
       - name: Run vllm-project/vllm-ascend test
         env:
           VLLM_WORKER_MULTIPROC_METHOD: spawn
@@ -134,10 +143,7 @@ jobs:
           BENCHMARK_HOME: /vllm-workspace/vllm-ascend/benchmark
         working-directory: /vllm-workspace/vllm-ascend
         run: |
-          pytest -sv ${{ inputs.tests }}
+          # ignore test_dispatch_ffn_combine until the test is fixed
+          pytest -sv ${{ inputs.tests }} \
+          --ignore=tests/e2e/nightly/ops/test_dispatch_ffn_combine.py 
 
-      - name: Install triton-ascend
-        run: |
-          source /usr/local/Ascend/ascend-toolkit/8.3.RC2/bisheng_toolkit/set_env.sh
-          wget https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/triton_ascend-3.2.0.dev2025110717-cp311-cp311-manylinux_2_27_aarch64.whl
-          pip install triton_ascend-3.2.0.dev2025110717-cp311-cp311-manylinux_2_27_aarch64.whl

.github/workflows/nightly_test_a2.yaml

@@ -63,6 +63,7 @@ jobs:
       vllm: v0.12.0
       runner: ${{ matrix.test_config.os }}
       tests: ${{ matrix.test_config.tests }}
+      name: ${{ matrix.test_config.name }}
       image: 'swr.cn-southwest-2.myhuaweicloud.com/base_image/ascend-ci/vllm-ascend:nightly-a2'
 
   single-node-accuracy-tests: