Rebase on distroless

Summary

Tim Seagren asked that I rebase on distroless, if possible.

Tasks

Contributor:

• Update Dockerfile, hardening_manifest.yaml and adhere to Iron Bank requirements
• Ensure container builds successfully in the Iron Bank pipeline prior to creating an Merge Request to Development.
• Provide justifications for findings in the VAT
• Open a Merge Request from your branch to development
• Apply the ~"Hardening::Review" label to this issue and wait for feedback

Note: You must manually apply the ~"Hardening::Review" label in order to have a CHT member review your merge request.

Iron Bank:

• Merge contributor branch to development
• Review findings and justifications
• Merge development to master and close issue