GH-47635: [CI][Integration] Add new gold files

[pitrou]

Rationale for this change

Update the testing submodule to the latest contents as of apache/arrow-testing#114 .
This adds "gold" IPC files generated by Arrow C++ 21.0.0.

Are these changes tested?

Yes, by existing Integration CI build.

Are there any user-facing changes?

No.

• GitHub Issue: [Integration] Generate new "golden" IPC files #47635

[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

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See also:

• Other pull requests
• Contribution Guidelines - Contributing Overview

[github-actions]

⚠️ GitHub issue #47635 has been automatically assigned in GitHub to PR creator.

[pitrou]

@github-actions crossbow submit fuzz

[github-actions]

Revision: 1b4653e

Submitted crossbow builds: ursacomputing/crossbow @ actions-415a79beab

Task	Status
test-build-cpp-fuzz

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit 2c63d48.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 9 possible false positives for unstable benchmarks that are known to sometimes produce them.