T8599: dropbear binary-only package

Patch modifies debian/control and debian/rules, there is no easy way to
fix source package creation in such case. As quick solution disable
source package build for this package (previously it failed silently)

Author: hedrok

scripts/package-build/dropbear/package.toml

@@ -2,6 +2,7 @@
 name = "dropbear"
 commit_id = "debian/2022.83-1+deb12u1"
 scm_url = "https://salsa.debian.org/debian/dropbear.git"
+build_cmd = "dpkg-buildpackage -us -uc -tc -b"
 
 [dependencies]
 packages = ["libpam0g-dev"]