Bump NHibernate from 4.0.1.4000 to 5.4.9

Bumps NHibernate from 4.0.1.4000 to 5.4.9.

---
updated-dependencies:
- dependency-name: NHibernate
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

packages.config

@@ -3,9 +3,9 @@
   <package id="Autofac" version="3.5.2" targetFramework="net452" />
   <package id="Iesi.Collections" version="4.0.1.4000" targetFramework="net452" />
   <package id="IronRuby" version="1.1.3" targetFramework="net452" />
-  <package id="NHibernate" version="4.0.1.4000" targetFramework="net452" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net452" />
-  <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net452" />
+  <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net452" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net452" />
+  <package id="NHibernate" version="4.0.1.4000" targetFramework="net452" />
 </packages>