[Data] Repurpose streaming CI to bulk CI(ray-project#33478)

Streaming executor is enabled by default. We repurpose this streaming CI to bulk so we can get some coverage of bulk (at least for now).

Signed-off-by: elliottower <[email protected]>

.buildkite/pipeline.ml.yml

@@ -433,16 +433,16 @@
     - sudo service mongodb stop
     - sudo apt-get purge -y mongodb*
 
-- label: "Dataset tests (streaming executor)"
+- label: "Dataset tests (bulk executor)"
   conditions: ["NO_WHEELS_REQUIRED", "RAY_CI_DATA_AFFECTED"]
   instance_size: medium
   commands:
     - cleanup() { if [ "${BUILDKITE_PULL_REQUEST}" = "false" ]; then ./ci/build/upload_build_info.sh; fi }; trap cleanup EXIT
     - ./ci/env/install-java.sh
     - DATA_PROCESSING_TESTING=1 ARROW_VERSION=7.* ./ci/env/install-dependencies.sh
     - ./ci/env/env_info.sh
-    - bazel test --config=ci $(./ci/run/bazel_export_options) --action_env=RAY_DATASET_USE_STREAMING_EXECUTOR=1 --build_tests_only --test_tag_filters=-dataset_integration python/ray/data/...
-    - bazel test --config=ci $(./ci/run/bazel_export_options) --action_env=RAY_DATASET_USE_STREAMING_EXECUTOR=1 --build_tests_only --test_tag_filters=ray_data python/ray/air/...
+    - bazel test --config=ci $(./ci/run/bazel_export_options) --action_env=RAY_DATASET_USE_STREAMING_EXECUTOR=0 --build_tests_only --test_tag_filters=-dataset_integration python/ray/data/...
+    - bazel test --config=ci $(./ci/run/bazel_export_options) --action_env=RAY_DATASET_USE_STREAMING_EXECUTOR=0 --build_tests_only --test_tag_filters=ray_data python/ray/air/...
 
 - label: "Dataset tests (Arrow nightly)"
   conditions: ["NO_WHEELS_REQUIRED", "RAY_CI_PYTHON_AFFECTED", "RAY_CI_DATA_AFFECTED"]