* fix listen to AnyIP if url is 0.0.0.0
* Add Test for listenin on AnyIP for url 0.0.0.0
* add missing using, use var, indent, remove empty line
* remove assert for ipv4/v6 address list
* test only if NET6_0_OR_GREATER
* use same code style
* add missing +
* Asser. to Assert
* split single test into one for IPv4 and one for IPv6
* Create IgnoreOnContinuousIntegrationFact.cs
* Ignore tests if CI/CD
* change to file - scoped namespace and add GITHUB_ACTIONS
* use PortUtils.FindFreeTcpPort()
* add and use GetIPAddressesByFamily
* add using System.Net.Sockets
* use #if for both unit tests and include new helper method inside