add pgagent to pgadmin docker container

[schmitzkr]

Describe the solution you'd like

it would be helpful to have pgagent deployable with the docker container.

Describe alternatives you've considered

deploying pgagent in its own container? or a full vm for pgadmin where I can deploy pgagent as well.

Additional context

Add any other context or screenshots about the feature request here.

[anilsahoo20]

@dpage, can you give your inputs on this?

[dpage]

pgAgent should not be in the pgAdmin container - that would go against the single concern principle for containers. It should have it's own Dockerfile and be a standalone container.