build(deps): bump jQuery.Validation from 1.12.0 to 1.19.4 in /Disco.Web

Bumps jQuery.Validation from 1.12.0 to 1.19.4.

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

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

Disco.Web/packages.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="BuildBundlerMinifier" version="3.2.449" targetFramework="net45" />
   <package id="BuildWebCompiler2022" version="1.14.9.1" targetFramework="net45" />
@@ -9,7 +9,7 @@
   <package id="jQuery" version="2.1.1" targetFramework="net45" />
   <package id="jQuery.UI.Combined" version="1.10.4" targetFramework="net45" />
   <package id="jQuery.UI.Themes.lightness" version="1.8.22" targetFramework="net45" />
-  <package id="jQuery.Validation" version="1.12.0" targetFramework="net45" />
+  <package id="jQuery.Validation" version="1.19.4" targetFramework="net45" />
   <package id="knockoutjs" version="3.1.0" targetFramework="net45" />
   <package id="MarkdownSharp" version="1.13.0.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.Mvc" version="4.0.30506.0" targetFramework="net45" />