Fix Credo issue #15

Job	Run time
Check formatting using Prettier	10s
Install deps and compile (1.13, 22.3, ubuntu-20.04)	21s
Install deps and compile (1.17, 27, ubuntu-latest)	13s
Format (1.13, 22.3, ubuntu-20.04)	14s
Deps audit (1.13, 22.3, ubuntu-20.04)	17s
Format (1.17, 27, ubuntu-latest)	11s
Dialyzer (1.13, 22.3, ubuntu-20.04)	2m 57s
Credo (1.13, 22.3, ubuntu-20.04)	11s
Deps audit (1.17, 27, ubuntu-latest)	15s
Dialyzer (1.17, 27, ubuntu-latest)	19s
Credo (1.17, 27, ubuntu-latest)	12s
Hex audit (1.13, 22.3, ubuntu-20.04)	12s
Test (1.13, 22.3, ubuntu-20.04)	16s
Check unused deps (1.13, 22.3, ubuntu-20.04)	8s
Hex audit (1.17, 27, ubuntu-latest)	11s
Check unused deps (1.17, 27, ubuntu-latest)	11s
Test (1.17, 27, ubuntu-latest)	11s
	6m 29s

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