package/luv: update hash

Upstream removed (using git force-push) and recreated version 1.29.1-1
and re-uploaded the source tarball. Therefore, the hash has changed and
needs to be updated.

See:
https://github.com/luvit/luv/issues/330



Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>