Bump jQuery.Validation (#351)

Bumps jQuery.Validation from 1.11.1 to 1.19.4.

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

dropbox-sdk-dotnet/Examples/SimpleBusinessDashboard/packages.config

@@ -6,7 +6,7 @@
   <package id="EntityFramework" version="6.1.3" targetFramework="net45" />
   <package id="HtmlTags" version="2.0.0.181" targetFramework="net45" />
   <package id="jQuery" version="1.10.2" targetFramework="net45" />
-  <package id="jQuery.Validation" version="1.11.1" targetFramework="net45" />
+  <package id="jQuery.Validation" version="1.19.4" targetFramework="net45" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.2" targetFramework="net45" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net45" />