Fix fmt + Mac CI jobs

[alamb]

Which issue does this PR close?

Relates to #2279

Rationale for this change

The windows, Mac, fmt and codecov CI checks are broken currently

What changes are included in this PR?

Fix Mac, and fmt CI checks

I am still working on Windows and Coverage (see my flailing attempts at #2280) but I think it is important to restore the CI checks sooner rather than later

Are there any user-facing changes?

No

[alamb]

Example Lint job success: https://github.com/apache/arrow-rs/runs/7638759965?check_suite_focus=true

Example Mac job: https://github.com/apache/arrow-rs/runs/7638760241?check_suite_focus=true

Example coverage job: https://github.com/apache/arrow-rs/runs/7638759453?check_suite_focus=true

[alamb]

This is a strange error: https://github.com/apache/arrow-rs/runs/7639063643?check_suite_focus=true

If it passes on rerun I'll file a ticket

thread 'aws::tests::s3_test' panicked at 'called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: HttpDispatch(HttpDispatchError { message: "Missing information for upload part 2" }) }', object_store/src/aws.rs:1277:59

Updated filed #2288

[alamb]

I am merging this one in because I think it is non controversial and I want to get CI coverage back up. I am happy to make any changes requested in a follow on PR

[ursabot]

Benchmark runs are scheduled for baseline = 3e17891 and contender = 6b2c757. 6b2c757 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java