[Misc] Reorg python test according to the guideline. (#5307)

Co-authored-by: Ubuntu <ubuntu@ip-172-31-28-63.ap-northeast-1.compute.internal>

tests/scripts/task_unit_test.bat

@@ -16,6 +16,6 @@ SET DGL_DOWNLOAD_DIR=!CD!
 
 python -m pip install pytest psutil pandas pyyaml pydantic rdflib torchmetrics || EXIT /B 1
 python -m pytest -v --junitxml=pytest_backend.xml --durations=100 tests\!DGLBACKEND! || EXIT /B 1
-python -m pytest -v --junitxml=pytest_compute.xml --durations=100 tests\compute || EXIT /B 1
+python -m pytest -v --junitxml=pytest_common.xml --durations=100 tests\python\common || EXIT /B 1
 ENDLOCAL
 EXIT /B

tests/scripts/task_unit_test.sh

@@ -35,8 +35,8 @@ conda activate ${DGLBACKEND}-ci
 
 if [ $DGLBACKEND == "mxnet" ]
 then
-  python3 -m pytest -v --junitxml=pytest_compute.xml --durations=100 --ignore=tests/compute/test_ffi.py tests/compute || fail "compute"
+  python3 -m pytest -v --junitxml=pytest_compute.xml --durations=100 --ignore=tests/python/common/test_ffi.py tests/python/common || fail "common"
 else
-  python3 -m pytest -v --junitxml=pytest_compute.xml --durations=100 tests/compute || fail "compute"
+  python3 -m pytest -v --junitxml=pytest_common.xml --durations=100 tests/python/common || fail "common"
 fi
 python3 -m pytest -v --junitxml=pytest_backend.xml --durations=100 tests/$DGLBACKEND || fail "backend-specific"