When service container^1 is defined, renovate cannot communicate with it, because they are on different networks.
Github documentation says:
When you run jobs in a container, GitHub connects service containers to the job using Docker's user-defined bridge networks. For more information, see "Use bridge networks" in the Docker documentation. ^2
However it seems like container started by renovatebot github actions is not on the same network.
Summary
When service container^1 is defined, renovate cannot communicate with it, because they are on different networks.
Github documentation says:
However it seems like container started by renovatebot github actions is not on the same network.
Logs from creation of service container:
Logs from creation of renovate container: