[ci] breaks down V1 Test into 3 groups of approx 30 minutes runtime (#23757)

Signed-off-by: Jean Schmidt <contato@jschmidt.me>

.buildkite/test-pipeline.yaml

@@ -234,16 +234,33 @@ steps:
   # OOM in the CI unless we run this separately
   - pytest -v -s tokenization
 
-- label: V1 Test
+- label: V1 Test e2e + engine
   mirror_hardwares: [amdexperimental]
   source_file_dependencies:
     - vllm/
     - tests/v1
   commands:
-    # split the test to avoid interference
-    - pytest -v -s v1/core
+    # TODO: accuracy does not match, whether setting
+    # VLLM_USE_FLASHINFER_SAMPLER or not on H100.
+    - pytest -v -s v1/e2e
     - pytest -v -s v1/engine
+
+- label: V1 Test entrypoints
+  mirror_hardwares: [amdexperimental]
+  source_file_dependencies:
+    - vllm/
+    - tests/v1
+  commands:
     - pytest -v -s v1/entrypoints
+
+- label: V1 Test others
+  mirror_hardwares: [amdexperimental]
+  source_file_dependencies:
+    - vllm/
+    - tests/v1
+  commands:
+    # split the test to avoid interference
+    - pytest -v -s v1/core
     - pytest -v -s v1/executor
     - pytest -v -s v1/sample
     - pytest -v -s v1/logits_processors
@@ -256,9 +273,6 @@ steps:
     - pytest -v -s v1/test_utils.py
     - pytest -v -s v1/test_oracle.py
     - pytest -v -s v1/test_metrics_reader.py
-    # TODO: accuracy does not match, whether setting
-    # VLLM_USE_FLASHINFER_SAMPLER or not on H100.
-    - pytest -v -s v1/e2e
     # Integration test for streaming correctness (requires special branch).
     - pip install -U git+https://github.com/robertgshaw2-redhat/lm-evaluation-harness.git@streaming-api
     - pytest -v -s entrypoints/openai/correctness/test_lmeval.py::test_lm_eval_accuracy_v1_engine