Bump Microsoft.Owin from 4.0.1 to 4.1.0

Bumps [Microsoft.Owin](https://github.com/aspnet/AspNetKatana) from 4.0.1 to 4.1.0.
- [Release notes](https://github.com/aspnet/AspNetKatana/releases)
- [Commits](aspnet/AspNetKatana@v4.0.1...v4.1.0)

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

Author: dependabot-preview[bot]

AlwaysEncryptedSample.Models/packages.config

@@ -8,7 +8,7 @@
   <package id="Microsoft.AspNet.Mvc" version="5.2.7" targetFramework="net461" />
   <package id="Microsoft.AspNet.Razor" version="3.2.7" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net461" />
-  <package id="Microsoft.Owin" version="4.0.1" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.1.0" targetFramework="net461" />
   <package id="Microsoft.Owin.Security" version="4.0.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Security.Cookies" version="4.0.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Security.OAuth" version="4.0.1" targetFramework="net461" />

AlwaysEncryptedSample/packages.config

@@ -19,7 +19,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net46" />
   <package id="Microsoft.jQuery.Unobtrusive.Ajax" version="3.2.6" targetFramework="net46" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.11" targetFramework="net46" />
-  <package id="Microsoft.Owin" version="4.0.1" targetFramework="net46" />
+  <package id="Microsoft.Owin" version="4.1.0" targetFramework="net46" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="4.0.1" targetFramework="net46" />
   <package id="Microsoft.Owin.Security" version="4.0.1" targetFramework="net46" />
   <package id="Microsoft.Owin.Security.Cookies" version="4.0.1" targetFramework="net46" />