fix(OOM): add --num-gpu-blocks-override=4000 to skip profiling

Profiling OOM: flash_attn_varlen_func allocates large temp buffers during
profile_run with 8192 dummy tokens. patch_worker_profile_override.py already
has skip logic when num_gpu_blocks_override is set.

4000 blocks × 16 tokens/block = 64K token KV capacity.
With max-model-len=80000 and prefix caching, this is sufficient.
Sub 168 reference: ran 262K context on 0.95 util without override because
base image profiling doesn't use flash_attn_varlen (uses native xformers).

computility-run.yaml

@@ -32,6 +32,8 @@ command:
     - --enforce-eager
     - --dtype
     - half
+    - --num-gpu-blocks-override
+    - '4000'
 env:
     - name: VLLM_ENGINE_ITERATION_TIMEOUT_S
       value: 3600