Add boto3 to required packages

[munrojm]

As discussed in #532

[codecov]

Codecov Report

Merging #544 (55a6e12) into main (309df0e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #544   +/-   ##
=======================================
  Coverage   89.12%   89.12%           
=======================================
  Files          40       40           
  Lines        2768     2768           
=======================================
  Hits         2467     2467           
  Misses        301      301           

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