Fix unit tests after arkindex-common changes

Codecov Report

Merging #873 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #873   +/-   ##
=======================================
  Coverage   86.53%   86.53%           
=======================================
  Files         226      226           
  Lines       14175    14175           
=======================================
  Hits        12267    12267           
  Misses       1908     1908           

Impacted Files	Coverage Δ
arkindex/project/tests/openapi/test_schemas.py	92.92% <ø> (ø)

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merged

mentioned in commit 4bae108d