copy only aarch64-Linux from jruby 9.3.9.0

[jsvd]

The Linux ffi binaries broke for centos/oraclelinux 7 from JRuby 9.3.9.0 to 9.3.10.0 jnr/jffi#138
For x86_64 Linux has been fixed in jnr/jffi#140, so we copy only the Linux aarch64 build.

See more at: jruby/jruby#7579

[elastic-sonarqube]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: dbd3557

[mergify]

This pull request does not have a backport label. Could you fix it @jsvd? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit.
• backport-8.x is the label to automatically backport to the 8.x branch.

[mergify]

backport-8.x has been added to help with the transition to the new branch 8.x.
If you don't need it please use backport-skip label.

[mergify]

This pull request is now in conflicts. Could you fix it @jsvd? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b reduce_custom_jni upstream/reduce_custom_jni
git merge upstream/main
git push upstream reduce_custom_jni