community/zendframework: move to unmaintained

https://framework.zend.com/blog/2020-01-24-laminas-launch
7 jobs for !5809 with zf in 2 minutes and 24 seconds
detached
Status Job ID Name Coverage
  Lint
passed #78141
x86_64 docker-alpine
lint

00:00:38

 
  Build
passed #78146
aarch64 ci-build docker-alpine
build-aarch64

00:01:14

passed #78147
armv7 ci-build docker-alpine
build-armv7

00:00:47

passed #78145
ppc64le ci-build docker-alpine
build-ppc64le

00:01:09

passed #78144
s390x ci-build docker-alpine
build-s390x

00:01:44

passed #78143
x86 ci-build docker-alpine
build-x86

00:00:22

passed #78142
x86_64 ci-build docker-alpine
build-x86_64

00:00:24