Bump Microsoft.AspNet.WebApi.OwinSelfHost from 5.2.9 to 5.3.0

Bumps [Microsoft.AspNet.WebApi.OwinSelfHost](https://github.com/aspnet/AspNetWebStack) from 5.2.9 to 5.3.0.
- [Release notes](https://github.com/aspnet/AspNetWebStack/releases)
- [Commits](https://github.com/aspnet/AspNetWebStack/commits/odata-v5.3)

---
updated-dependencies:
- dependency-name: Microsoft.AspNet.WebApi.OwinSelfHost
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/SignalIR/Examples/Akka.Streams.SignalIR.Examples/Akka.Streams.SignalIR.Examples.csproj

@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Owin.StaticFiles" Version="4.2.2" />
-    <PackageReference Include="Microsoft.AspNet.WebApi.OwinSelfHost" Version="5.2.9" />
+    <PackageReference Include="Microsoft.AspNet.WebApi.OwinSelfHost" Version="5.3.0" />
     <PackageReference Include="Microsoft.Owin.Cors" Version="4.2.2" />
   </ItemGroup>