tests: ensure multinode mixin correctly for multinode docker test shell.

Signed-off-by: Larry Shen <larry.shen@nxp.com>
16 jobs for docker_test_shell_multinode in 16 minutes and 3 seconds (queued for 5 seconds)
latest
Status Job ID Name Coverage
  Test
passed #131121
amd64
dispatcher-debian-10

00:02:27

passed #131123
amd64
dispatcher-debian-11

00:02:29

passed #131122
amd64
server-debian-10

00:02:53

passed #131124
amd64
server-debian-11

00:05:04

 
  Analyze
passed #131125
amd64-dind
bandit-sast

00:00:55

passed #131126
amd64
black

00:00:36

passed #131127
amd64
code_quality

00:00:20

passed #131132
amd64
codespell

00:00:18

passed #131128
amd64
coverage

00:06:43

61.07%
passed #131129
amd64
dockerfiles

00:00:15

passed #131131
amd64
pylint

00:03:05

passed #131130
amd64
schemas

00:00:30

 
  Build
passed #131134
amd64
debian/10

00:01:25

passed #131133
amd64
doc

00:00:38

passed #131135
amd64-dind
docker-amd64-dispatcher

00:04:06

passed #131136
amd64-dind
docker-amd64-server

00:04:10