Beta New Major Release

Please take a look at https://github.com/kreuzwerker/terraform-provider-docker/blob/master/docs/v3_v4_migration.md for breaking changes.

Please note

Due to the only maintainer @Junkern not being org admin of the kreuzwerker org, he cannot update the GPG key in the terraform registry. All versions starting with v3.7.0 are signed with a new GPG key (because the old one expired) - installing this through the usual terraform registry does not work. Please set the source value to registry.opentofu.org/kreuzwerker/docker.