ARROW-16434: [R][CI] Revert devdocs to setup-r@v1 for now

[wjones127]

I'm not 100% sure of the specific cause, but also don't think it's worth getting to the exact root since we will be replacing with UCRT version soon. It seems switching to setup-r@v2 broke our setup. My best guess is we unexpectedly were dependent on this line:

https://github.com/r-lib/actions/blob/2acb5b24ed4d2f8a065b600c903d5ee62bbbe893/setup-r/src/installer.ts#L382

But that we removed in v2 in:

r-lib/actions@18ab426

[wjones127]

@github-actions crossbow submit test-r-devdocs

[github-actions]

https://issues.apache.org/jira/browse/ARROW-16434

[github-actions]

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

[github-actions]

Revision: 2b65342

Submitted crossbow builds: ursacomputing/crossbow @ actions-1992

Task	Status
test-r-devdocs

[wjones127]

cc @thisisnic

[thisisnic]

cc @dragosmg too as I think you'd be interest to know about this!

[thisisnic]

Thanks for getting to the bottom of this one!

[jonkeane]

Thank you all!

[ursabot]

Benchmark runs are scheduled for baseline = 2025673 and contender = 3c3e68c. 3c3e68c 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 ⬇️0.12% ⬆️0.04%] test-mac-arm
[Finished ⬇️3.57% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.32% ⬆️0.04%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] 3c3e68c1 ec2-t3-xlarge-us-east-2
[Finished] 3c3e68c1 test-mac-arm
[Finished] 3c3e68c1 ursa-i9-9960x
[Finished] 3c3e68c1 ursa-thinkcentre-m75q
[Finished] 2025673f ec2-t3-xlarge-us-east-2
[Finished] 2025673f test-mac-arm
[Finished] 2025673f ursa-i9-9960x
[Finished] 2025673f 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