deps: update dependency nunit to 4.5.1 (#4187)

Author: renovate-bot

samples/snippets/dotnet-snippets/sample-tests/sample-tests.csproj

@@ -13,7 +13,7 @@
     <ItemGroup>
         <PackageReference Include="coverlet.collector" Version="8.0.0"/>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
-        <PackageReference Include="NUnit" Version="4.4.0" />
+        <PackageReference Include="NUnit" Version="4.5.1" />
         <PackageReference Include="NUnit.Analyzers" Version="4.11.2"/>
         <PackageReference Include="NUnit3TestAdapter" Version="6.1.0"/>
         <PackageReference Include="Testcontainers" Version="4.10.0" />