Bump jQuery.Validation in /BlogEngine/BlogEngine.NET

Bumps jQuery.Validation from 1.14.0 to 1.19.4.

---
updated-dependencies:
- dependency-name: jQuery.Validation
  dependency-type: direct:production
...

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

Author: dependabot[bot]

BlogEngine/BlogEngine.NET/packages.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="angularjs" version="1.3.0" targetFramework="net45" />
   <package id="Antlr" version="3.5.0.2" targetFramework="net45" />
@@ -7,7 +7,7 @@
   <package id="FontAwesome" version="4.4.0" targetFramework="net45" />
   <package id="jQuery" version="2.1.4" targetFramework="net45" />
   <package id="jQuery.Cookie" version="1.4.1" targetFramework="net452" />
-  <package id="jQuery.Validation" version="1.14.0" targetFramework="net45" />
+  <package id="jQuery.Validation" version="1.19.4" targetFramework="net45" />
   <package id="json2" version="1.0.2" targetFramework="net4" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net45" />