chore(deps): update dependency mysqlconnector to v2

Author: renovate[bot]

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

@@ -21,7 +21,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MySqlConnector" Version="1.0.0" />
+    <PackageReference Include="MySqlConnector" Version="2.1.13" />
     <PackageReference Include="NHibernate" Version="5.1.0" />
   </ItemGroup>