main/haproxy: upgrade to 2.0.12

remove comment from APKBUILD about keeping LTS
7 jobs for !2481 with 3.11-stable-haproxy-2.0.12 in 2 minutes and 39 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
failed #27103
docker-alpine x86_64 allowed to fail
lint

00:00:57

 
  Build
passed #27108
docker-alpine ci-build aarch64
build-aarch64

00:00:45

passed #27109
docker-alpine ci-build armv7
build-armv7

00:01:40

passed #27107
docker-alpine ci-build ppc64le
build-ppc64le

00:01:01

passed #27106
docker-alpine ci-build s390x
build-s390x

00:00:39

passed #27105
docker-alpine ci-build x86
build-x86

00:01:13

passed #27104
docker-alpine ci-build x86_64
build-x86_64

00:00:31

 
Name Stage Failure
failed
lint Lint
No job log