Fix command docker ps showing issue

[arista-hpandya]

This a backport of sonic-net/sonic-utilities#3791

What I did
Fix docker ps command showing image ID instead of name:tag issue.
It only impacts dhcp-relay, dhcp-server and macsec.

How I did it
render_ctx will provide name:tag and j2 template will use it instead of ID.

How to verify it
Previous command output (if the output of a command-line utility has changed)

root@qzd570:/etc/sonic# docker ps -a | grep macsec
c9cf538eae74   5a4a047d213b                             "/usr/local/bin/supe…"   3 days ago   Up 7 minutes             macsec1
031f09619347   5a4a047d213b                             "/usr/local/bin/supe…"   3 days ago   Up 6 minutes             macsec0

New command output (if the output of a command-line utility has changed)

root@qzd301:/# docker ps | grep -i macsec
99079683b0b4   docker-macsec-dbg:latest                 "/usr/local/bin/supe…"   27 hours ago   Up 8 hours              macsec0
d25dd3b09000   docker-macsec-dbg:latest                 "/usr/local/bin/supe…"   27 hours ago   Up 8 hours              macsec1

[arista-hpandya]

FYI: @arlakshm @vmittal-msft