community/docker: upgrade to 20.10.6

For more information, see https://docs.docker.com/engine/release-notes/#20106
7 jobs for !20495 with upgrade/docker-20.10.6 in 9 minutes and 18 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
failed #371779
docker-alpine x86_64 allowed to fail
lint

00:00:18

 
  Build
passed #371784
docker-alpine ci-build aarch64
build-aarch64

00:02:37

passed #371785
docker-alpine ci-build armv7
build-armv7

00:03:14

passed #371783
docker-alpine ci-build ppc64le
build-ppc64le

00:03:49

passed #371782
docker-alpine ci-build s390x
build-s390x

00:02:42

passed #371781
docker-alpine ci-build x86
build-x86

00:04:10

passed #371780
docker-alpine ci-build x86_64
build-x86_64

00:01:29

 
Name Stage Failure
failed
lint Lint

======================================================
apkbuild-lint:
======================================================


SP:[AL36]:./APKBUILD:112:LDFLAGS should not be overwritten, add $LDFLAGS to it

Cleaning up file based variables
ERROR: Job failed: exit code 1