Hardcoded date time values in unit tests fail outside of EST

[JFisk42]

Describe the Issue
Hardcoded date times in the unit tests cause failures when run in a system that is not in the eastern timezone. I live 3 hours behind EST so the unit tests below all had the hours shifted by three.

To Reproduce
Steps to reproduce the behavior:

1. Have your system set to a timezone outside of EST
2. Run the unit tests dotnet test
3. The 4 ScoreAudit unit tests should now fail.

Expected behavior
Unit tests should pass in every timezone :)

Screenshots

❌ FAILED: ScoreAuditMessage1_ReturnsExpectedResponse(endpoint: "/PIQI/ScoreAuditMessage") (1611ms)
   Assert.Equal() Failure: Strings differ
    Expected: ···"e":{"data":"1/2/202612:00:00AM","attribut"···
    Actual:   ···"e":{"data":"1/2/20263:00:00AM","attribute"···

❌ FAILED: ScoreAuditMessage2_ReturnsExpectedResponse(endpoint: "/PIQI/ScoreAuditMessage") (1295ms)
   Assert.Equal() Failure: Strings differ
    Expected: ···"":{"data":"8/12/20261:00:00AM","attribute"···
    Actual:   ···"":{"data":"8/12/20264:00:00AM","attribute"···

❌ FAILED: ScoreAuditMessage4_ReturnsExpectedResponse(endpoint: "/PIQI/ScoreAuditMessage") (1513ms)
   Assert.Equal() Failure: Strings differ
    Expected: ···"":{"data":"6/21/20261:00:00AM","attribute"···
    Actual:   ···"":{"data":"6/21/20264:00:00AM","attribute"···

❌ FAILED: ScoreAuditMessage3_ReturnsExpectedResponse(endpoint: "/PIQI/ScoreAuditMessage") (2008ms)
   Assert.Equal() Failure: Strings differ
    Expected: ···"":{"data":"6/21/20261:00:00AM","attribute"···
    Actual:   ···"":{"data":"6/21/20264:00:00AM","attribute"···