Bump Microsoft.Owin in /Project/Src/TestCop.Plugin.Tests

Bumps [Microsoft.Owin](https://github.com/aspnet/AspNetKatana) from 3.0.1 to 4.2.2.
- [Release notes](https://github.com/aspnet/AspNetKatana/releases)
- [Commits](aspnet/AspNetKatana@v3.0.1...v4.2.2)

---
updated-dependencies:
- dependency-name: Microsoft.Owin
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Project/Src/TestCop.Plugin.Tests/packages.config

@@ -171,7 +171,7 @@
   <package id="JetBrains.WindowsDesktop.Mock.Runtime" version="0.0.3" targetFramework="net472" />
   <package id="Microsoft.CSharp" version="4.5.0" targetFramework="net472" />
   <package id="Microsoft.Extensions.DependencyModel" version="3.0.0" targetFramework="net472" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net472" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net472" />
   <package id="Microsoft.Owin.FileSystems" version="3.0.1" targetFramework="net472" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.0.1" targetFramework="net472" />
   <package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net472" />