ARROW-16256: [Docs] Document which format version is supported

[domoritz]

No description provided.

[github-actions]

https://issues.apache.org/jira/browse/ARROW-16256

[github-actions]

⚠️ Ticket has not been started in JIRA, please click 'Start Progress'.

[ursabot]

Benchmark runs are scheduled for baseline = d21f8b1 and contender = f6c99d5. f6c99d5 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed] test-mac-arm
[Finished ⬇️5.71% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.46% ⬆️0.0%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] f6c99d51 ec2-t3-xlarge-us-east-2
[Failed] f6c99d51 test-mac-arm
[Finished] f6c99d51 ursa-i9-9960x
[Finished] f6c99d51 ursa-thinkcentre-m75q
[Finished] d21f8b19 ec2-t3-xlarge-us-east-2
[Failed] d21f8b19 test-mac-arm
[Finished] d21f8b19 ursa-i9-9960x
[Finished] d21f8b19 ursa-thinkcentre-m75q
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

[ursabot]

['Python', 'R'] benchmarks have high level of regressions.
ursa-i9-9960x