testing/traefik: upgrade to 2.3.7

7 jobs for !16728 with traefik-2.3.7 in 5 minutes and 21 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
passed #291442
docker-alpine x86_64
lint

00:00:18

 
  Build
passed #291447
docker-alpine ci-build aarch64
build-aarch64

00:03:26

passed #291448
docker-alpine ci-build armv7
build-armv7

00:00:37

passed #291446
docker-alpine ci-build ppc64le
build-ppc64le

00:05:01

passed #291445
docker-alpine ci-build s390x
build-s390x

00:00:34

passed #291444
docker-alpine ci-build x86
build-x86

00:00:24

passed #291443
docker-alpine ci-build x86_64
build-x86_64

00:02:47