Bump NSubstitute from 5.1.0 to 5.3.0

Bumps [NSubstitute](https://github.com/nsubstitute/NSubstitute) from 5.1.0 to 5.3.0.
- [Release notes](https://github.com/nsubstitute/NSubstitute/releases)
- [Changelog](https://github.com/nsubstitute/NSubstitute/blob/main/CHANGELOG.md)
- [Commits](nsubstitute/NSubstitute@v5.1.0...v5.3.0)

---
updated-dependencies:
- dependency-name: NSubstitute
  dependency-version: 5.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -46,7 +46,7 @@
     <PackageVersion Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.6" />
     <PackageVersion Include="MinimalApi.Endpoint" Version="1.3.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageVersion Include="NSubstitute" Version="5.1.0" />
+    <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NSubstitute.Analyzers.CSharp" Version="1.0.17" />
     <PackageVersion Include="System.Net.Http.Json" Version="$(SystemExtensionVersion)" />
     <PackageVersion Include="System.Security.Claims" Version="4.3.0" />