Same with a commercial flying club. It is their duty in law to supply 'goods suitable for purpose'. You have a case if they are not!
One could argue that by supplying you a GPS that "works" they've fulfilled any duty you may feel they have to you.
The fact the GPS data is out of date puts you in no different a position as if you turned up at the airfield with a paper map you bought a few months back. Its still ultimately your responsibility as PIC to ensure that any temporary or permanent airspace changes along the route you plan to fly have been taken into account when using whatever navigation tool you plan to use. Given that the flying club will have no idea what route you'll be flying, 'suitable for purpose' is irrelevant at that level of detail.