fix: switch bloom filter hash from murmur to fnv1a

[achingbrain]

Switch the internal hash function to one that is used elsewhere in the codebase which lets us drop the murmur dep for a slightly smaller bundle size.

Change checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation if necessary (this includes comments as well)
• I have added tests that prove my fix is effective or that my feature works