package/botan: bump to version 2.19.2

Drop openssl dependency: "The OpenSSL provider was incompatible with
OpenSSL 3.0. It has been removed"

https://github.com/randombit/botan/blob/2.19.2/news.rst



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>