main/dovecot: security upgrade to 2.3.9.3

taken from master commit e9e7886a
test CI on _ikke_ request
7 jobs for !4160 with 3.11-stable-dovecot-2.3.9.3 in 123 minutes and 52 seconds
detached
Status Job ID Name Coverage
  Lint
failed #51286
docker-alpine x86_64 allowed to fail
lint

00:03:49

 
  Build
passed #51291
docker-alpine ci-build aarch64
build-aarch64

00:01:39

passed #51292
docker-alpine ci-build armv7
build-armv7

00:01:49

passed #51290
docker-alpine ci-build ppc64le
build-ppc64le

00:03:22

failed #51289
docker-alpine ci-build s390x
build-s390x

02:00:01

passed #51288
docker-alpine ci-build x86
build-x86

00:01:22

passed #51287
docker-alpine ci-build x86_64
build-x86_64

00:01:16

 
Name Stage Failure
failed
lint Lint
No job log
failed
build-s390x Build The script exceeded the maximum execution time set for the job
No job log