libffi: Update 3.5.2->3.8.0

[bastelfreak]

Short description

Checklist

I have:

• read the CONTRIBUTING.md document
• read and accepted the Developer Certificate of Origin document and added a Signed-off-by annotation to each of my commits
• read and accepted the AI Policy document and added Generated-by or Assisted-by annotations to each of my commits created with the help of an AI agent
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)

[bastelfreak]

• agent-runtime-main: https://github.com/OpenVoxProject/puppet-runtime/actions/runs/33198153343
• agent-runtime-8x: https://github.com/OpenVoxProject/puppet-runtime/actions/runs/33198191633
• openbolt-runtime: https://github.com/OpenVoxProject/puppet-runtime/actions/runs/33198216467