Update dependency revision on BoomFilters
Update dependency revision on BoomFilters

Cayley uses a DeletableBloomFilter for kv stores, which may cause a
panic when loading a database due to an off-by-one error. This was
fixed in commit
https://github.com/tylertreat/BoomFilters/commit/e4c39d49fb322169c2932fc10b0c5544318add78

kortschak/cayley,kortschak/cayley,kortschak/cayley,cayleygraph/cayley,kortschak/cayley,cayleygraph/cayley,kortschak/cayley