(split from main repo) Update NUnit

Author: sharwell

GerritTests.csproj

@@ -9,8 +9,8 @@
 
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="5.2.0" />
-    <PackageReference Include="NUnit" Version="3.10.1" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.10.0" />
+    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
   </ItemGroup>
 
   <ItemGroup>