[CI/Build] Fix kernels test location (#35205)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

.buildkite/test_areas/kernels.yaml

@@ -115,7 +115,7 @@ steps:
     - pytest -v -s tests/kernels/moe/test_nvfp4_moe.py
     - pytest -v -s tests/kernels/moe/test_ocp_mx_moe.py
     - pytest -v -s tests/kernels/moe/test_flashinfer.py
-    - pytest -v -s kernels/moe/test_flashinfer_moe.py
+    - pytest -v -s tests/kernels/moe/test_flashinfer_moe.py
     - pytest -v -s tests/kernels/moe/test_cutedsl_moe.py
     # e2e
     - pytest -v -s tests/models/quantization/test_nvfp4.py