Properly close buffers

### Describe the enhancement requested

As @pan3793 pointed out https://github.com/apache/parquet-java/pull/3360#issuecomment-3588399639, when updating to a later version of Hadoop, it starts failing with an error of lingering buffers.

### Component(s)

_No response_

Start by reading the discussion in Apache Parquet PR 3360, especially the referenced comment, and reproduce the lingering-buffer failure after updating Hadoop. Locate the buffer lifecycle involved in that failure; done means buffers are properly closed and the later Hadoop version no longer reports lingering buffers.

Written by the indexing model from the issue text.