[C++][Parquet] Fix updating page statistics for WriteArrowDictionary

[wgtmac]

Describe the bug, including details regarding any error messages, version, and platform.

Commit for this issue #15042 has fixed the missing statistics, but it still has some issues. For example, if a single write has been split into more than one batch which results in several data pages, the statistics of each page is not correctly updated.

Component(s)

C++, Parquet