Update nix dependencies via flake.lock

[CorbanR]

Update build_nix.yml workflow to use latest github action.

refs: #389

Description

Updated flake.lock, and build_nix.yml to use latest github actions to get rid of deprecation warning
Added a basic check to build_nix.yml gimme-aws-creds --version

Related Issue

#389

Motivation and Context

Maintenance

How Has This Been Tested?

CI passes

Types of changes

• [ x] Maintenance (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ x] My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• [ x] I have read the CONTRIBUTING document.
• [ x] I have added tests to cover my changes.
• [ x] All new and existing tests passed.