[Bug] Bitmap benchmarks do not close seekable input streams

[thswlsqls]

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• I searched in the issues and found nothing similar.

Paimon version
master @ 345526e (2.0-SNAPSHOT)

Compute Engine
Engine-agnostic (benchmark module, paimon-benchmark/paimon-micro-benchmarks)

Minimal reproduce step
Read these five benchmark cases in the benchmark/bitmap package:

• RoaringBitmapBenchmark.testDeserialize(), case deserialize(DataInputStream(BufferedInputStream))
• BitmapIndexBenchmark.query()
• RangeBitmapIndexBenchmark.queryBsi() / queryBitmap() / queryRangeBitmap()

Each opens a LocalFileIO.LocalSeekableInputStream inside the case body and never closes it. Nothing downstream closes it either: FileIndexReader implementations do not close the stream they are created from.

What doesn't meet your expectations?
The streams should be released deterministically once the case body ends.

• The other three cases in the same method RoaringBitmapBenchmark.testDeserialize() already wrap the stream in try-with-resources; only the second case does not.
• LocalFileIO.LocalSeekableInputStream.close() closes the underlying FileInputStream, so skipping it leaves release to the GC.

Anything else?
Fix is to wrap the five sites in try-with-resources. The measured logic (deserialization, index lookup) stays the same.

Are you willing to submit a PR?

• I'm willing to submit a PR!