Update of "System.Linq.Dynamic.Core" package

**Describe the bug**
Hello! Thank you for sharing this powerful library.

Last week I have reported a bug in the Linq.Dynamic.Core package (zzzprojects/System.Linq.Dynamic.Core#545). The `DynamicExpressionParser.ParseLambda()` function was unable to escape backslashes correctly.

Can you please update this package to the newest version v1.2.13.

Thank you!

src/WorkflowCore.DSL/WorkflowCore.DSL.csproj

@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="SharpYaml" Version="1.6.5" />
-    <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.7" />
+    <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.13" />
   </ItemGroup>
 
   <ItemGroup>