deskutils/qtfeedback: unbreak after 020693c166d1

cd /wrkdirs/usr/ports/deskutils/qtfeedback/work/qtfeedback-5.0.0-beta1-32-ga14bd0b && /usr/local/lib/qt5/bin/syncqt.pl -version 5.15.8 -module QtFeedback
env: perl: No such file or directory

PR: 266007
Reported by: antoine (via exp-run)