chore(deps): update dependency nhibernate to v5.3.13

Author: renovate[bot]

src/NHibernate.Driver.MySqlConnector/NHibernate.Driver.MySqlConnector.csproj

@@ -19,7 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="MySqlConnector" Version="1.0.0" />
-    <PackageReference Include="NHibernate" Version="5.1.0" />
+    <PackageReference Include="NHibernate" Version="5.3.13" />
   </ItemGroup>
 
 </Project>