Tweaked UnitTests.csproj

Author: bastianeicher

src/UnitTests/UnitTests.csproj

@@ -12,7 +12,7 @@
     <SignAssembly>True</SignAssembly>
     <AssemblyOriginatorKeyFile>..\sgKey.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
-  <PropertyGroup Condition="$(TargetFramework)=='net9.0'">
+  <PropertyGroup Condition="$(TargetFramework)!='net48'">
     <!-- Run nullability analysis only on annotated frameworks -->
     <Nullable>enable</Nullable>
   </PropertyGroup>