Fix API keys for admin authentication

[brucosper]

The previous version was trying to load the test key (and failing because of the relative path). I created a proper key in the BAR and made it load the test version only for CI

[codecov-commenter]

Codecov Report

Merging #108 (a152ff8) into dev (0465a9a) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##              dev     #108   +/-   ##
=======================================
  Coverage   74.58%   74.58%           
=======================================
  Files          23       23           
  Lines        1153     1153           
  Branches      188      188           
=======================================
  Hits          860      860           
  Misses        265      265           
  Partials       28       28           

Impacted Files	Coverage Δ
api/__init__.py	79.76% <100.00%> (ø)

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