package/exfat-utils: security bump to version 1.4.0

Fix CVE-2022-29973: relan exFAT 1.3.0 allows local users to obtain
sensitive information (data from deleted files in the filesystem) in
certain situations involving offsets beyond ValidDataLength.

https://github.com/relan/exfat/releases/tag/v1.4.0



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>