testing/mapnik: switch to python3

7 jobs for !733 with mapnik in 1 minute (queued for 2 seconds)
detached
Status Job ID Name Coverage
  Lint
passed #7718
docker-alpine x86_64
lint

00:00:18

 
  Build
passed #7723
docker-alpine ci-build aarch64
build-aarch64

00:00:19

passed #7724
docker-alpine ci-build armv7
build-armv7

00:00:21

passed #7722
docker-alpine ci-build ppc64le
build-ppc64le

00:00:25

passed #7721
docker-alpine ci-build s390x
build-s390x

00:00:18

passed #7720
docker-alpine ci-build x86
build-x86

00:00:21

passed #7719
docker-alpine ci-build x86_64
build-x86_64

00:00:24