package/unrar: bump version to 6.2.10
According to https://www.rarlab.com/vuln_rev3_names.html this package
is not affected by CVE-2023-40477.
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>