Bug#1025164: lintian: missing-prerequisite-for-pyproject-backend tag needs to check Build-Depends-Indep too

[Scott Kitterman <debian@kitterman.com>]

Package: lintian
Version: 2.115.3
Severity: normal
X-Debbugs-Cc: debian-python@lists.debian.org

The missing-prerequisite-for-pyproject-backend check appears to only
look for the prerequisite packages in Build-Depends, but since they
aren't needed for clean, they could be in Build-Depends-Indep, leading
to false positives.

Scott K