Updated Box2D window package

Author: codingben

examples/window/Box2D.WindowTests/Box2D.WindowTests.csproj

@@ -1,10 +1,10 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Box2D.NetStandard" Version="1.0.3" />
-    <PackageReference Include="Box2D.Window" Version="1.0.2" />
+    <PackageReference Include="Box2D.NetStandard" Version="1.0.3"/>
+    <PackageReference Include="Box2D.Window" Version="1.0.4"/>
   </ItemGroup>
 </Project>