chore/utils-test

[Sworzen1]

List of changes

• Add tests

Checklist

• related issue
• My changes generate no new warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the changelog
• I have added tests that prove my fix is effective or that my feature works

[Sworzen1]

checkIsMaintenanceOn -> change env variable on false instead of empty string
canonizeJson
generateAnchor -> think about how to resolve getting correct anchor object structure
fix lint

[MSzalowski]

When you finish. Please rebase to recent develop and update badges. yarn test:make-badges. We need to have that task automated, but for now let's keep it manual on every tests update