Docker socket support in local builder in Kamal 2.0

[lado936]

Hi all, i am testing Kamal 2.0 version for side project, have issue with Gitlab CI where i am using dind approach to build images in docker, before 2.0 on local builder you can set docker socket and it was working perfectly, but now when socket parameter is gone i am getting below issue

docker stdout: Nothing written
docker stderr: ERROR: failed to initialize builder kamal-local-docker-container (kamal-local-docker-container0): error during 
connect: Get "http://docker:2375/v1.47/containers/buildx_buildkit_kamal-local-docker-container0/json": dial tcp: lookup docker on 8.8.8.8:53: no such host```