# Which issue does this PR close?

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Push after #9354 where `TestReader` is moved to a common place for other
async reader tests.

- Part of #9348.
- Will help with #9118

# Rationale for this change

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# What changes are included in this PR?
- Move sync tests from `parquet/tests/arrow_reader/row_filter.rs` to
`parquet/tests/arrow_reader/row_filter/sync.rs`
- Move async tests from `parquet/src/async_reader/mod.rs` to
`parquet/tests/arrow_reader/row_filter/async.rs`

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# Are these changes tested?
Code movement
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# Are there any user-facing changes?
Code movement
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