testing/mono: switch to python3

7 jobs for !737 with mono in 19 minutes and 54 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
passed #7747
docker-alpine x86_64
lint

00:00:31

 
  Build
passed #7752
docker-alpine ci-build aarch64
build-aarch64

00:00:20

passed #7753
docker-alpine ci-build armv7
build-armv7

00:00:21

passed #7751
docker-alpine ci-build ppc64le
build-ppc64le

00:00:25

passed #7750
docker-alpine ci-build s390x
build-s390x

00:00:18

passed #7749
docker-alpine ci-build x86
build-x86

00:19:21

passed #7748
docker-alpine ci-build x86_64
build-x86_64

00:13:01