Add overrides for using hardening-includes

Signed-off-by: Niels Thykier <niels@thykier.net>
src-copyright.pm: Permit https:// even if its wrong

The copyright policy suggests that the Format URL must be "http://",
but consider "https://" a valid alternative.  This makes lintian check
the copyright file rather than skipping it with a pedantic warning.

Signed-off-by: Niels Thykier <niels@thykier.net>