Update Suave to version 2.5.3 (#4187)

frameworks/FSharp/suave/src/App/App.fsproj

@@ -11,7 +11,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Suave" Version="2.5.0-beta2" />
+    <PackageReference Include="Suave" Version="2.5.3" />
   </ItemGroup>
 
 </Project>