Fix doc build

Author: Morten Nielsen

src/Toolkit/Toolkit.Maui/Esri.ArcGISRuntime.Toolkit.Maui.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <TargetFrameworks>$(NETMauiTarget);$(NetAndroidTargetFramework);$(NetiOSTargetFramework);$(NetCatalystTargetFramework)</TargetFrameworks>
-		<TargetFrameworks Condition="$(NETWinOnly)">$(NETMauiTarget)</TargetFrameworks>
+		<TargetFrameworks Condition="'$(NETWinOnly)'=='true'">$(NETMauiTarget)</TargetFrameworks>
         <Description>ArcGIS Maps SDK for .NET controls and utilities for .NET MAUI apps including .NET for Android, .NET for iOS, .NET for macOS, or Windows UI 3 (WinUI 3)</Description>
         <PackageTags>ArcGIS Cartography Geo Geographic Geography Geolocation Geospatial GIS Latitude Location Longitude Map Mapping Maps Places Spatial 3D WinUI Android iOS Mac Catalyst MacCatalyst Windows UI 3 toolkit</PackageTags>
         <TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);$(NetMauiWindowsTargetFramework)</TargetFrameworks>

src/Toolkit/Toolkit.WPF/Esri.ArcGISRuntime.Toolkit.WPF.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFrameworks>$(DotNetTargetFramework);$(NetWindowsTargetFramework)</TargetFrameworks>
-	<TargetFrameworks Condition="$(NETWinOnly)">$(NetWindowsTargetFramework)</TargetFrameworks>
+	<TargetFrameworks Condition="'$(NETWinOnly)'=='true'">$(NetWindowsTargetFramework)</TargetFrameworks>
     <Description>ArcGIS Maps SDK for .NET controls and utilities for WPF apps.</Description>
     <PackageTags>ArcGIS Cartography Geo Geographic Geography Geolocation Geospatial GIS Latitude Location Longitude Map Mapping Maps Places Spatial 3D  WPF toolkit</PackageTags>
     <ImplicitUsings>enable</ImplicitUsings>