Rename this repository to reflect that it concerns both `agent` and `inbound-agent`?

[lemeurherve]

Following up #569 (comment), opening this issue for proposing a new name (or not) for this repository since #570 both images are built from here.

Initial suggestions:

"docker-agents" or "docker-agent-inbound"

Additional suggestions from https://gitter.im/jenkinsci/docker:

"docker-agent" would probably be fine

"docker-inbound-agent"

[lemeurherve]

I propose you to react on this comment for your favorite suggestion as new repo name:

• 👍: "docker-agent"
• ❤️: "docker-agents"
• 🚀: "docker-agent-inbound"
• 🎉: "docker-inbound-agent"

Feel free to propose alternative names, this list is not exhaustive.