[Rust] Re-enable transform module tests

[asfimport]

The tests in the root of the array/transform module are currently commented out, this appears to have been done as part of moving from Arc to ArrayData.

Reporter: Raphael Taylor-Davies / @tustvold
Assignee: Raphael Taylor-Davies / @tustvold

PRs and other links:

• GitHub Pull Request #10048

_{Note: This issue was originally created as ARROW-12400. Please see the migration documentation for further details.}

[asfimport]

Andrew Lamb / @alamb:
Issue resolved by pull request 10048
#10048