MINOR:[CI] Fix automatic issue labeling.

[assignUser]

Rationale for this change

The issue labeling was failing because it only got the first 30 label (we have 56) everything on page 2 was regarded as "non-existent' throwing an error.

What changes are included in this PR?

Raise the number of items per page to 100 ensuring that all labels are fetched.

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

In the case of PARQUET issues on JIRA the title also supports:

PARQUET-${JIRA_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - How to contribute patches

[assignUser]

works: #34321

[ursabot]

Benchmark runs are scheduled for baseline = a9552d1 and contender = 8c70ddf. 8c70ddf 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 ⬇️0.28% ⬆️0.0%] test-mac-arm
[Finished ⬇️1.53% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.44% ⬆️0.03%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] 8c70ddf6 ec2-t3-xlarge-us-east-2
[Finished] 8c70ddf6 test-mac-arm
[Finished] 8c70ddf6 ursa-i9-9960x
[Finished] 8c70ddf6 ursa-thinkcentre-m75q
[Finished] a9552d18 ec2-t3-xlarge-us-east-2
[Finished] a9552d18 test-mac-arm
[Finished] a9552d18 ursa-i9-9960x
[Finished] a9552d18 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