support container name filtering

[trung]

Thanks for creating this great action. It looks like you are using docker ps to filter the containers. How about adding --filter support?

Note: i'm not very competent with JS, otherwise I would try to get a PR raised.

[jwalton]

Apparently I'm not very competent with docker, because I didn't even know --filter was a thing. :P I'll see what I can do. :)