CI: Update first-party GitHub Actions from v3 to v4

[RytoEX]

Description

GitHub Actions has deprecated Actions based on node16. The v4 actions are based on node20. Replace first-party v3 actions with their v4 counterparts.

See:
https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/

Motivation and Context

Want to prevent deprecation warnings on CI. Want to avoid CI failing when the node16 actions are disabled.

How Has This Been Tested?

CI will test.

Types of changes

• Bug fix (non-breaking change which fixes an issue)

• Tweak (non-breaking change to improve existing functionality)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.