debian: add a Built-Using field to the e2fsck-static package

debian: add a Built-Using field to the e2fsck-static package

We will probably want to eventually revert this commit and replace it
with a change using dh-builtusing, such as can be found in [1], but
dh-builtusing is only available in Debian 13 (trixie) and we don't
want to make life difficult for people who need to backport to Debian
Stable or Ubuntu LTS.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1106799#32

Addresses-Debian-Bug: #1106799
Signed-off-by: Theodore Ts'o <tytso@mit.edu>