ARROW-18336: [Release][Docs] Don't update versions not in major release

[kou]

No description provided.

[github-actions]

https://issues.apache.org/jira/browse/ARROW-18336

[github-actions]

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

[kou]

+1

[ursabot]

Benchmark runs are scheduled for baseline = c2f4671 and contender = d82e4c1. d82e4c1 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
[Finished ⬇️0.27% ⬆️0.2%] test-mac-arm
[Finished ⬇️0.27% ⬆️0.27%] ursa-i9-9960x
[Finished ⬇️0.56% ⬆️0.07%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] d82e4c1a ec2-t3-xlarge-us-east-2
[Finished] d82e4c1a test-mac-arm
[Finished] d82e4c1a ursa-i9-9960x
[Finished] d82e4c1a ursa-thinkcentre-m75q
[Finished] c2f4671e ec2-t3-xlarge-us-east-2
[Finished] c2f4671e test-mac-arm
[Finished] c2f4671e ursa-i9-9960x
[Finished] c2f4671e 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