Bump Microsoft.Owin in /src/HttpOverStream.Server.Owin.Tests

Bumps [Microsoft.Owin](https://github.com/aspnet/AspNetKatana) from 4.0.1 to 4.1.1.
- [Release notes](https://github.com/aspnet/AspNetKatana/releases)
- [Commits](https://github.com/aspnet/AspNetKatana/compare/v4.0.1...v4.1.1)

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

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

src/HttpOverStream.Server.Owin.Tests/packages.config

@@ -3,7 +3,7 @@
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.7" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.6" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.6" targetFramework="net461" />
-  <package id="Microsoft.Owin" version="4.0.1" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net461" />
   <package id="MSTest.TestAdapter" version="1.4.0" targetFramework="net461" />
   <package id="MSTest.TestFramework" version="1.4.0" targetFramework="net461" />
   <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />

src/HttpOverStream.Server.Owin/HttpOverStream.Server.Owin.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Owin" Version="4.0.1" />
+    <PackageReference Include="Microsoft.Owin" Version="4.1.1" />
     <PackageReference Include="Microsoft.Owin.Hosting" Version="4.0.1" />
   </ItemGroup>