tools: Build arm32 ghcr build images on aarch64 nodes

[Haroon-Khel]

• commit message has one of the standard prefixes
• faq.md updated if appropriate
• other documentation is changed or added (if applicable)
• playbook changes run through VPC or QPC (if you have access)
• VPC/QPC not applicable for this PR
• for inventory.yml changes, bastillion/nagios/jenkins updated accordingly

ref #4088 (comment)

[karianna]

Do we need to check for existence first?

[sxa]

-f should mean that's not required.

[Haroon-Khel]

https://ci.adoptium.net/job/build_image_updater/119/execution/node/146/log/

[Haroon-Khel]

Had to add build_image_updater.*| to the Restrict jobs at execution field for dockerhost-osuosl-ubuntu2404-aarch64-2, currently only -3 has it and was the only dockerBuild&&linux&&aarch64 node able to run image builds for aarch64

[Haroon-Khel]

Latest build looks good https://ci.adoptium.net/job/build_image_updater/120/execution/node/95/log/

[Haroon-Khel]

Its pulling the correct bootjdks, unlike last time

root@68b460d2d473:/usr/lib/jvm# file jdk11/bin/java
jdk11/bin/java: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 3.2.0, not stripped

[Haroon-Khel]

Forgot to archive the sha of the build image after building. Rerunning https://ci.adoptium.net/job/build_image_updater/121/console

[sxa]

I'll also note that it may be interesting to write a blog post about what we're doing in this area and talking about the technical changes required to move from building container images on native machines to aarch64 host systems.

(To be clear, I'm happy to write something myself if you'd prefer, but I don't want to take it away from you!)