[Rust] Speed-up casts of dates and times

[asfimport]

Reporter: Jorge Leitão / @jorgecarleitao
Assignee: Jorge Leitão / @jorgecarleitao

PRs and other links:

• GitHub Pull Request #9297

_{Note: This issue was originally created as ARROW-11354. Please see the migration documentation for further details.}

[asfimport]

Neville Dipale / @nevi-me:
Issue resolved by pull request 9297
#9297