Bug#950954: liburi-perl FTBFS with debhelper >= 12.7.3

[Adrian Bunk]

Source: liburi-perl
Version: 1.76-1
Severity: serious
Tags: ftbfs bullseye sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/liburi-perl.html

...
   dh_gencontrol
dpkg-gencontrol: warning: can't parse dependency perl:any:any
dpkg-gencontrol: error: error occurred while parsing Depends field: ,
        perl:any:any
dh_gencontrol: error: dpkg-gencontrol -pliburi-perl -ldebian/changelog -Tdebian/liburi-perl.substvars -Pdebian/liburi-perl returned exit code 25
dh_gencontrol: error: Aborting due to earlier error
make: *** [debian/rules:4: binary] Error 25


See #946655 for background.