Update dependencies in C# test project.

PiperOrigin-RevId: 570922351

csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFrameworks>net462;net6.0</TargetFrameworks>
@@ -10,18 +10,18 @@
 
   <ItemGroup>
     <ProjectReference Include="..\Google.Protobuf\Google.Protobuf.csproj" />
-    <ProjectReference Include="..\Google.Protobuf.Test.TestProtos\Google.Protobuf.Test.TestProtos.csproj"/>
+    <ProjectReference Include="..\Google.Protobuf.Test.TestProtos\Google.Protobuf.Test.TestProtos.csproj" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.2" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
   </ItemGroup>
 
   <!-- Needed for the netfx build to work on Unix. See https://github.com/dotnet/designs/pull/33 -->
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup>