Update to .net48

Author: MrBlue

src/Oxide.Unity.csproj

@@ -12,7 +12,7 @@
     <PackageIconUrl>icon.png</PackageIconUrl>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>$(RepositoryUrl)</PackageProjectUrl>
-    <TargetFrameworks>net35</TargetFrameworks>
+    <TargetFramework>net48</TargetFramework>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
   </PropertyGroup>
   <ItemGroup>