Importing all functions is useless because Sipwise::API does not
define an import routine. This was tolerated on Debian 12, but
starting from Debian 13 (Perl v5.40.1) it produces a warning.
The warning is harmless, but using qw(all) is incorrect.
All scripts under bin/ have been patched to remove qw(all).
Change-Id: I98f9f63a250c86b1e55f8368724bd4a19bb969ba
(cherry picked from commit 2e728bbc50)
(cherry picked from commit 168336e9a3)