package/irssi: bump version to 1.4.5
For change log, see:
https://irssi.org/NEWS/#news-v1-4-5
This commit also adds the pgp key id used for the signature
verification.
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>