[FLINK-10691][e2e] Remove dependency on hadoop for StreamSQL E2E test

[hequn8128]

What is the purpose of the change

The flink-stream-sql-test makes use of the BucketingSink and thus requires hadoop to be available. This means we can't run this test in hadoop-free environments, which is a bit unfortunate.

This pull request replace BucketingSink with StreamingFileSink .

Brief change log

• Replace BucketingSink with StreamingFileSink
• Adapt related script: test_streaming_sql.sh

Verifying this change

This change is already covered by existing tests: flink-stream-sql-test.
Passed in local env.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
• The serializers: (no)
• The runtime per-record code paths (performance sensitive): (no )
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
• The S3 file system connector: (no)

Documentation

• Does this pull request introduce a new feature? (no)