Fix false positive for Specs #592

Job	Run time
[23.3/1.14.5] new Phoenix app analysed by Credo [OTP/Elixir]	40s
Elixir 1.11.4 OTP 23.3 - v1.6	41s
[24.3/1.14.5] new Phoenix app analysed by Credo [OTP/Elixir]	33s
Elixir 1.12.3 OTP 23.3 - v1.6	42s
[25.3/1.15.7] new Phoenix app analysed by Credo [OTP/Elixir]	33s
Elixir 1.13.4 OTP 23.3 - v1.6	45s
[25.3/1.16.1] new Phoenix app analysed by Credo [OTP/Elixir]	34s
[26.1/1.15.7] new Phoenix app analysed by Credo [OTP/Elixir]	32s
Elixir 1.14.5 OTP 23.3 - v1.6	44s
[26.1/1.16.1] new Phoenix app analysed by Credo [OTP/Elixir]	35s
Elixir 1.11.4 OTP 24.3 - v1.6	31s
Elixir 1.12.3 OTP 24.3 - v1.6	35s
Elixir 1.13.4 OTP 24.3 - v1.6	33s
Elixir 1.14.5 OTP 24.3 - v1.6	32s
Elixir 1.13.4 OTP 25.3 - v1.6	35s
Elixir 1.15.7 OTP 25.3 - v1.6	35s
Elixir 1.16.1 OTP 25.3 - v1.6	34s
Elixir 1.15.7 OTP 26.1 - v1.6	34s
Elixir 1.16.1 OTP 26.1 - v1.6	35s
Elixir 1.11.4 OTP 23.3 - main	46s
Elixir 1.12.3 OTP 23.3 - main	43s
Elixir 1.13.4 OTP 23.3 - main	44s
Elixir 1.14.5 OTP 23.3 - main	42s
Elixir 1.11.4 OTP 24.3 - main	37s
Elixir 1.12.3 OTP 24.3 - main	34s
Elixir 1.13.4 OTP 24.3 - main	35s
Elixir 1.14.5 OTP 24.3 - main	34s
Elixir 1.13.4 OTP 25.3 - main	36s
Elixir 1.15.7 OTP 25.3 - main	31s
Elixir 1.16.1 OTP 25.3 - main	33s
Elixir 1.15.7 OTP 26.1 - main	33s
Elixir 1.16.1 OTP 26.1 - main	36s
	19m 27s

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