Include managed runtime commands

[hnestmann]

PWA Kit environments can be managed using APIs. It would be great if we can add this to SFCC-CI to allow common tool to handle both b2c backend and pwa kit frontend

https://developer.commercecloud.com/s/api-details/a003k00000ZsXZvAAN/commerce-cloud-developer-centermanagedruntime

[drewzboto]

thanks! I'll share this with the Managed Runtime team and see if we can contribute a starting set

[tobiaslohr]

Thanks @drewzboto