chore: Bump NUnit from 4.3.2 to 4.4.0

---
updated-dependencies:
- dependency-name: NUnit
  dependency-version: 4.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -16,7 +16,7 @@
     <PackageVersion Include="NuGet.PackageManagement" Version="6.14.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="9.0.8" />
     <PackageVersion Include="NUglify" Version="1.21.17" />
-    <PackageVersion Include="nunit" Version="4.3.2" />
+    <PackageVersion Include="nunit" Version="4.4.0" />
     <PackageVersion Include="NUnit.Analyzers" Version="4.10.0" />
     <PackageVersion Include="NUnit3TestAdapter" Version="5.0.0" />
     <PackageVersion Include="Scriban" Version="6.2.1" />