[Rust] [Parquet] Unignore some roundtrip tests that are passing now

[asfimport]

We had some roundtrip Parquet -> Arrow tests that were failing so we ignored them, but now there has been more work and they pass!

Reporter: Carol Nichols / @carols10cents
Assignee: Carol Nichols / @carols10cents

PRs and other links:

• GitHub Pull Request #8546

_{Note: This issue was originally created as ARROW-10413. Please see the migration documentation for further details.}

[asfimport]

Jorge Leitão / @jorgecarleitao:
Issue resolved by pull request 8546
#8546