test: remove warnings about quoted keywords

[Highjhacker]

Proposed changes

Fixed the tests to remove the warning while running in. Nothing critical, but it remove a lot of useless output. The warnings were caused by the double quotes like here :

json(%{"success" => true, "data" => %{ "synced": true }})

Which threw these warnings :

but the quotes are not required. Note that keywords are always atoms, even when quoted, and quotes should only be used to introduce keywords with foreign characters in them

Types of changes

• Test (adding missing tests or fixing existing tests)

Checklist

• I have read the CONTRIBUTING documentation
• Lint and unit tests pass locally with my changes

[codecov-io]

Codecov Report

Merging #29 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #29   +/-   ##
=======================================
  Coverage   65.73%   65.73%           
=======================================
  Files          18       18           
  Lines         143      143           
=======================================
  Hits           94       94           
  Misses         49       49

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[faustbrian]

https://docs.ark.io/guidebook/contribution-guidelines/git-commit-guidelines.html