bump prost version

[0xmountaintop]

No description provided.

[codecov-commenter]

Codecov Report

Merging #90 (e6ced26) into master (8a1c805) will not change coverage.
The diff coverage is n/a.

❗ Current head e6ced26 differs from pull request most recent head 44d605c. Consider uploading reports for the commit 44d605c to get more accurate results

@@           Coverage Diff           @@
##           master      #90   +/-   ##
=======================================
  Coverage   52.86%   52.86%           
=======================================
  Files           9        9           
  Lines         524      524           
=======================================
  Hits          277      277           
  Misses        247      247           

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[0xmountaintop]

close #65