testing/ardour: attempt to fix build

Fixes #12171
7 jobs for !16039 with ardour-build-fix in 30 minutes and 6 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
passed #277069
docker-alpine x86_64
lint

00:00:19

 
  Build
passed #277074
docker-alpine ci-build aarch64
build-aarch64

00:10:25

passed #277075
docker-alpine ci-build armv7
build-armv7

00:29:47

passed #277073
docker-alpine ci-build ppc64le
build-ppc64le

00:00:52

passed #277072
docker-alpine ci-build s390x
build-s390x

00:20:43

passed #277071
docker-alpine ci-build x86
build-x86

00:07:04

passed #277070
docker-alpine ci-build x86_64
build-x86_64

00:05:23