chore(deps): bump the tunit group with 2 updates

Bumps the tunit group with 2 updates: [TUnit.Core](https://github.com/thomhurst/TUnit) and [TUnit](https://github.com/thomhurst/TUnit).


Updates `TUnit.Core` from 0.5.6 to 0.5.18
- [Commits](https://github.com/thomhurst/TUnit/commits)

Updates `TUnit` from 0.5.6 to 0.5.18
- [Commits](https://github.com/thomhurst/TUnit/commits)

---
updated-dependencies:
- dependency-name: TUnit.Core
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: tunit
- dependency-name: TUnit
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: tunit
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -26,8 +26,8 @@
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageVersion Include="NUnit.Analyzers" Version="4.4.0" />
     <PackageVersion Include="PublicApiGenerator" Version="11.3.0" />
-    <PackageVersion Include="TUnit" Version="0.5.6" />
-    <PackageVersion Include="TUnit.Core" Version="0.5.6" />
+    <PackageVersion Include="TUnit" Version="0.5.18" />
+    <PackageVersion Include="TUnit.Core" Version="0.5.18" />
     <PackageVersion Include="Verify.MSTest" Version="28.6.1" />
     <PackageVersion Include="Verify.NUnit" Version="28.6.1" />
     <PackageVersion Include="Verify.TUnit" Version="28.6.1" />