Bump fatlib modules.

Note to future self: EUMM ships JSON.pm in inc/ and at some point
writes them into its own .packlist, and because in Perl 5.8.9 core
perl lib is *before* site_perl, fatpacker gets confused by picking up
MakeMaker's packlist rather than JSON::PP's, ending up MakeMaker
fatpacked.

Workaround: remove the MakeMaker packlist, also remove JSON/PP.pm
from perl lib, then reinstall MakeMaker.