piuparts_tap: don't check only for error code 100 but accept any digit
piuparts_tap: don't check only for error code 100 but accept any digit

While we usally received status=100 on errors, there might
be different status codes, e.g. when removing packages goes
wrong:

| ERROR: Command failed (status=1): ['chroot', '/var/cache/pbuilder/tmp.Vm9yxXRdcF_piuparts_tmp/tmpLZmcmg', 'eatmydata', 'dpkg', '--purge', '--pending']

Development sponsored by Sipwise GmbH, recorded as
TT#25415 in customers' ticket system.

hashar/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,kartikm/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,hashar/jenkins-debian-glue,mika/jenkins-debian-glue,mika/jenkins-debian-glue,kartikm/jenkins-debian-glue