Correct Phoenix image tag

9 jobs from gitlab in 11 minutes and 51 seconds
Status Job ID Name Coverage
  Prepare
passed #19894
docker-host
build build-env image

00:00:02

passed #19896
docker-host
build phoenix 4.10 image

00:01:18

passed #19895
docker-host
build phoenix 4.11 image

00:00:02

passed #19898
docker-host
build phoenix 4.8 image

00:00:01

passed #19897
docker-host
build phoenix 4.9 image

00:00:02

 
  Test
passed #19900
docker
test phoenix 4.10

00:10:20

passed #19899
docker
test phoenix 4.11

00:10:28

passed #19902
docker
test phoenix 4.8

00:10:26

passed #19901
docker
test phoenix 4.9

00:10:29