feat: Benchmark Release Workflow (1st Pass)

Created a distro tar file for running benchmarks against Deephaven Core
- Has a script that runs the correct DHC docker image
- Results are csv in a local directory
Created a workflow for releasing the Benchmark artifact and distro
- Generate release notes (These are just git log for now)
- Add release tag
- Make Github release with distro attached as an Asset
The Benchmark artifact is not published yet (just trying to get the release action to work in main)

deephaven / benchmark