Add nightly docker build to synced workflows

[surchs]

The following repos have the docker nightly build workflow (with different names):

• [ ] query-tool
• [ ] bagel-cli
• [ ] api
• [ ] federation-api

All of these workflows should be replaced by a single synced workflow. This might require either making the docker image name match the github repo name (or vice versa), or setting a repository env variable to configure the base name of the Docker image we are building

TODO

• [x] we will have to delete the possibly differently named nightly workflows in the repos first
• [x] make a new template nightly build workflow
• [ ] sync it to the repos
• [ ] confirm that the workflow works

[alyssadai]

note: this would also be affected by

• https://github.com/neurobagel/workflows/issues/97