fix: Security as array and valid spec in tests

[fritterhoff]

Should Fix: #74

[wI2L]

Changes looks fine to me. Thanks for taking time to send a PR, and sorry for the late response on the issue. I'll merge it asap and release a new version.

[codecov]

Codecov Report

Merging #76 (d5bd4ab) into master (eb08933) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #76   +/-   ##
=======================================
  Coverage   95.01%   95.01%           
=======================================
  Files           7        7           
  Lines         962      962           
=======================================
  Hits          914      914           
  Misses         32       32           
  Partials       16       16           

Impacted Files	Coverage Δ
openapi/generator.go	94.00% <ø> (ø)
openapi/spec.go	82.05% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update eb08933...d5bd4ab. Read the comment docs.