arrow

GH-45545: [C++][Parquet] Add missing includes (#45554)



### Rationale for this change

This fixed a compile error under Windows and MacOS when attempting to package this library as a Conan package: https://github.com/conan-io/conan-center-index/pull/26623

### What changes are included in this PR?

It adds 2 missing headers from the STL, array and vector, which cause resulting compiler errors.

### Are these changes tested?

They are tested and passing for the Conan package of these libraries here: https://github.com/conan-io/conan-center-index/pull/26623

### Are there any user-facing changes?

No, only changes within a source file.

* GitHub Issue: #45545

Authored-by: Antony Peacock <ant.peacock@gmail.com>
Signed-off-by: Bryce Mecum <petridish@gmail.com>