[SPARK-53090][CORE][SS][TESTS] Use Java OutputStream.write instead of IOUtils.write

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR aims to use Java OutputStream.write instead of IOUtils.write.

Why are the changes needed?

To use a better implementation for our use cases.

scala> val s = "a".repeat(400_000_000)

scala> spark.time(new java.io.FileOutputStream("/tmp/a").write(s.getBytes()))
Time taken: 270 ms

scala> spark.time(org.apache.commons.io.IOUtils.write(s, new java.io.FileOutputStream("/tmp/a")))
Time taken: 1070 ms

Does this PR introduce any user-facing change?

No.

How was this patch tested?

Pass the CIs.

Was this patch authored or co-authored using generative AI tooling?

No.

[dongjoon-hyun]

Thank you, @HyukjinKwon .

[dongjoon-hyun]

I verified this test PR manually.

$ dev/lint-scala
Using SPARK_LOCAL_IP=localhost
Scalastyle checks passed.
Scalafmt checks passed.

$ build/sbt "core/testOnly org.apache.spark.util.UtilsSuite"
...
[info] Tests: succeeded 61, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 22 s, completed Aug 3, 2025, 5:08:10 PM

$ build/sbt "streaming/testOnly org.apache.spark.streaming.InputStreamsSuite"
...
[info] Tests: succeeded 11, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 22 s, completed Aug 3, 2025, 5:09:06 PM

Merged to master.