package/grantlee: bump to 5.3.1
The hash of the license file has changed due to the addition of this
line:
+Grantlee is copyright Stephen Kelly <steveire@gmail.com> and others.
Signed-off-by: Zoltan Gyarmati <zgyarmati@zgyarmati.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>