testing/pure-ftpd: add unicode support

Build pure-ftpd with unicode support.
pure-ftpd can't read files with Unicode characters without Unicode
support and Unicode is more or less the standard encoding nowadays.
7 jobs for !18668 with optix2000-master-patch-55092 in 1 minute and 36 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
failed #330804
docker-alpine x86_64 allowed to fail
lint

00:00:18

 
  Build
passed #330809
docker-alpine ci-build aarch64
build-aarch64

00:01:02

passed #330810
docker-alpine ci-build armv7
build-armv7

00:01:07

passed #330808
docker-alpine ci-build ppc64le
build-ppc64le

00:01:17

passed #330807
docker-alpine ci-build s390x
build-s390x

00:00:53

passed #330806
docker-alpine ci-build x86
build-x86

00:00:37

passed #330805
docker-alpine ci-build x86_64
build-x86_64

00:00:37

 
Name Stage Failure
failed
lint Lint
======================================================
apkbuild-lint:
======================================================


SC:[AL62]:./APKBUILD:16:volatile source 'https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa.patch'
SC:[AL62]:./APKBUILD:17:volatile source 'https://github.com/jedisct1/pure-ftpd/commit/36c6d268cb190282a2c17106acfd31863121b58e.patch'

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