arrow

GH-34446: [C++][Parquet] Fix RecordReaderPrimitveTypeTests test (#34447)

### Rationale for this change

The test data was updated in https://github.com/apache/arrow/pull/17877 to have a depth of 3.

An assertion was added concurrently to assert the max depth in https://github.com/apache/arrow/pull/34318.

This PR fixes the test so the changes are compatible.

### What changes are included in this PR?

### Are these changes tested?

### Are there any user-facing changes?

* Closes: #34446

Authored-by: Will Jones <willjones127@gmail.com>
Signed-off-by: Jacob Wujciak-Jens <jacob@wujciak.de>