ARROW-18062: [R] error in CI jobs for R 3.5 and 3.6 when R package being installed

[nealrichardson]

Not sure why this behavior would differ between R versions, but it makes sense to move the UDF registration to after the binding registry is created and only do it if slice_sample() is called.

[nealrichardson]

@github-actions crossbow submit test-r-versions

[github-actions]

https://issues.apache.org/jira/browse/ARROW-18062

[github-actions]

Revision: 810f74b

Submitted crossbow builds: ursacomputing/crossbow @ actions-7f475e6d05

Task	Status
test-r-versions

[nealrichardson]

@github-actions crossbow submit test-r-versions

[github-actions]

Revision: c74862a

Submitted crossbow builds: ursacomputing/crossbow @ actions-b4eb0356cf

Task	Status
test-r-versions

[ursabot]

Benchmark runs are scheduled for baseline = 99b4092 and contender = f0cf5c2. f0cf5c2 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 ⬇️1.11% ⬆️0.0%] test-mac-arm
[Finished ⬇️0.0% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.18% ⬆️0.04%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] f0cf5c20 ec2-t3-xlarge-us-east-2
[Failed] f0cf5c20 test-mac-arm
[Finished] f0cf5c20 ursa-i9-9960x
[Finished] f0cf5c20 ursa-thinkcentre-m75q
[Finished] 99b40926 ec2-t3-xlarge-us-east-2
[Failed] 99b40926 test-mac-arm
[Finished] 99b40926 ursa-i9-9960x
[Finished] 99b40926 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.
test-mac-arm
ursa-i9-9960x