chore(deps): update dependency nhibernate to v5.5.2

Author: renovate[bot]

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

@@ -24,7 +24,7 @@
 
   <ItemGroup>
     <PackageReference Include="MySqlConnector" Version="1.0.0"/>
-    <PackageReference Include="NHibernate" Version="5.1.0"/>
+    <PackageReference Include="NHibernate" Version="5.5.2"/>
   </ItemGroup>
 
   <ItemGroup>