Update AMI with newer JDK and EC2 instance type, README with new result graphs

[alexvigdor]

• Update AMI to run on latest LTS JDK 25, since that will be a common production deployment target moving forward
• Update AMI to use newer c8g generation of compute-optimized VM (ARM64 architecture)
• Capture raw results of fresh run in EC2 including latest library versions (run from latest master)
• Create and link published spreadsheet and graphs visualizing results of latest run
• Update README with new results

[fabienrenaud]

This is awesome! Thank you so much for doing this!

A couple of things:

1. Can you add latest results to the archive/all-runs.md file as well?
2. I see that not all libs are using the latest versions. That's alright; better to publish updated results than none at all. Please consider updating all libs to latest for next time.

[alexvigdor]

Updated all-runs.md with the latest results. I know several libraries had their versions updated in build.gradle since the last run, but I did not think to check if all were on the latest published version; I will take the time to do that before the next run!

[fabienrenaud]

Thanks again!