Bump the nuget-dependencies group with 1 update

Bumps TUnit from 1.21.6 to 1.23.7

---
updated-dependencies:
- dependency-name: TUnit
  dependency-version: 1.23.7
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -13,6 +13,6 @@
     <PackageVersion Include="Serilog" Version="4.3.1" />
     <PackageVersion Include="Testcontainers.PostgreSql" Version="4.11.0" />
     <PackageVersion Include="Testcontainers.Redis" Version="4.7.0" />
-    <PackageVersion Include="TUnit" Version="1.21.6" />
+    <PackageVersion Include="TUnit" Version="1.23.7" />
   </ItemGroup>
 </Project>