Close response bodies

[Daanikus]

Fix responses returned from Object methods whose bodies have not been closed. This leads to connections not being recycled.

Add CodeLingo tenet to catch this issue during code reviews.

I've fixed instances in example and test files, the Bucket struct may have similar issues which we can catch by editing the tenet. Are there other structs which may contain unclosed connections?

[codecov]

Codecov Report

Merging #15 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #15   +/-   ##
========================================
  Coverage    96.27%   96.27%           
========================================
  Files           16       16           
  Lines          805      805           
========================================
  Hits           775      775           
  Misses          16       16           
  Partials        14       14

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