[CI] Move to AWS SDK 3 (#21258)
This ended up being pretty trivial because AWS released a v2 to v3
conversion [tool](https://www.npmjs.com/package/aws-sdk-js-codemod).
I just ran the tool and removed newly dead code. I also updated the
dependency/node versions.
Log of it working
[here](https://github.com/intel/llvm/actions/runs/21883049373/job/63171777328).
Closes: https://github.com/intel/llvm/issues/21254
Signed-off-by: Nick Sarnie <nick.sarnie@intel.com>
