Figure out how to get dind working in pipeline so we can run tests in action

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Re: this - still a mystery. No clue why it doesn't connect.

Context: ory/dockertest is used in code to run tests against databases (redis, postgres), it spins up new docker container to do the test then does the teardown. dockertest needs access to docker - as the name might suggest.

Solution 1: Figure out how to connect github's job service properly - can run a dind container on the side as a service container to provide docker
Solution 2 and I hate it: install docker into the go build image