package/libidn: bump to version 1.41
Update hash of COPYINGv3 (https URLs are used since
https://gitlab.com/libidn/libidn/-/commit/d66411c378a248dcbd6e610c71c16076169c5ba3)
https://gitlab.com/libidn/libidn/-/blob/v1.41/NEWS
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>