tarball: add missing debian-sid.dockerfile to EXTRA_DIST

Signed-off-by: Laszlo Szemere <laszlo.szemere@oneidentity.com>

Author: szemere

dbld/Makefile.am

@@ -31,6 +31,7 @@ EXTRA_DIST += \
 	dbld/images/fedora-33.dockerfile \
 	dbld/images/debian-stretch.dockerfile \
 	dbld/images/debian-buster.dockerfile \
+	dbld/images/debian-sid.dockerfile \
 	dbld/images/ubuntu-xenial.dockerfile \
 	dbld/images/ubuntu-bionic.dockerfile \
 	dbld/images/ubuntu-focal.dockerfile \