boxer: autodep8-perl-recommends autopkgtest fails due to boxer-data

boxer-data was removed from the archive[1]
boxer contains recommends relationship to boxer-data.
autodep8-perl-recommends test tries to install it, causing a test failure:
---
autopkgtest [14:43:48]: test autodep8-perl-recommends: preparing testbed
279s Reading package lists...
279s Building dependency tree...
279s Reading state information...
279s Starting pkgProblemResolver with broken count: 1
279s Starting 2 pkgProblemResolver with broken count: 1
279s Investigating (0) autopkgtest-satdep:s390x < none -> 0 @un puN Ib >
279s Broken autopkgtest-satdep:s390x Depends on boxer-data:s390x < none @un mH >
279s Broken autopkgtest-satdep:s390x Depends on mmdebstrap:s390x < none | 1.4.3-4 @un umH >
279s Considering mmdebstrap:s390x 3 as a solution to autopkgtest-satdep:s390x 9998
279s Re-Instated mmdebstrap:s390x
279s Done
279s Some packages could not be installed. This may mean that you have
279s requested an impossible situation or if you are using the unstable
279s distribution that some required packages have not yet been created
279s or been moved out of Incoming.
279s The following information may help to resolve the situation:
279s
279s The following packages have unmet dependencies:
279s autopkgtest-satdep : Depends: boxer-data but it is not installable
279s E: Unable to correct problems, you have held broken packages.
279s autopkgtest: WARNING: Test dependencies are unsatisfiable - calling apt install on test deps directly for further data about failing dependencies in test logs
280s /bin/sh: 1: mmdebstrap: not found
280s autodep8-perl-recommends FAIL badpkg
280s blame: boxer
---[2]

[1] https://bugs.launchpad.net/ubuntu/+source/boxer-data/+bug/1843049
[2] https://objectstorage.prodstack5.canonical.com/swift/v1/AUTH_0f9aae918d5b4744bf7b827671c86842/autopkgtest-noble/noble/s390x/b/boxer/20240323_144403_f8bd0@/log.gz