(PDB-3467) Update cheshire to 5.7.1
(PDB-3467) Update cheshire to 5.7.1

This fixes streaming response memory issues.

rbrw/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,mullr/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,mullr/puppetdb,mullr/puppetdb,mullr/puppetdb,mullr/puppetdb