Add tasks/version/logging_utils/beam_search to basic_correctness deps

Following the deeper audit pattern from #42219:

- `vllm/tasks.py`: imported by `vllm/model_executor/models/registry.py`
  and other model-side code transitively reached by `LLM(...)`.
- `vllm/version.py`: imported by `vllm/v1/engine/core.py` and
  `vllm/engine/arg_utils.py`.
- `vllm/logging_utils/`: imported by `vllm/model_executor/models/registry.py`
  (`logtime`) and `vllm/v1/engine/core.py`.
- `vllm/beam_search.py`: imported by `vllm/entrypoints/llm.py` (the
  `LLM` class is the entry point under test).

These are first-order imports of the engine/LLM path that
`test_basic_correctness.py`, `test_cpu_offload.py`, and
`test_cumem.py` exercise.

Signed-off-by: Kevin H. Luu <kevin@anyscale.com>

Signed-off-by: khluu <khluu000@gmail.com>

.buildkite/test_areas/basic_correctness.yaml

@@ -7,20 +7,24 @@ steps:
   timeout_in_minutes: 30
   device: h200_18gb
   source_file_dependencies:
+  - vllm/beam_search.py
   - vllm/config/
   - vllm/device_allocator/
   - vllm/distributed/
   - vllm/engine/
   - vllm/entrypoints/llm.py
   - vllm/inputs/
+  - vllm/logging_utils/
   - vllm/model_executor/
   - vllm/multimodal/
   - vllm/platforms/
   - vllm/sampling_params.py
   - vllm/sequence.py
+  - vllm/tasks.py
   - vllm/transformers_utils/
   - vllm/utils/
   - vllm/v1/
+  - vllm/version.py
   - tests/basic_correctness/test_basic_correctness
   - tests/basic_correctness/test_cpu_offload
   - tests/basic_correctness/test_cumem.py