Bump credo from 1.6.7 to 1.7.0 #319

	name: Elixir CI

	on: [push, pull_request]

	jobs:
	all_tests:
	runs-on: ubuntu-latest
	env:
	MIX_ENV: test
	POSTGRES_HOSTNAME: localhost
	POSTGRES_DATABASE: incident
	POSTGRES_PASSWORD: postgres
	POSTGRES_USERNAME: postgres
	services:
	postgres:
	image: postgres:9.6.17-alpine
	env:
	POSTGRES_HOST_AUTH_METHOD: trust
	POSTGRES_DB: incident
	POSTGRES_USER: postgres
	ports:
	- 5432:5432
	options: --health-cmd pg_isready --health-interval 10s --health-timeout 10s --health-retries 10
	steps:
	- uses: actions/checkout@v2
	- name: Setup elixir
	uses: erlef/setup-elixir@v1
	with:
	elixir-version: '1.12.3'
	otp-version: '24.3.4.7'
	- name: Retrieve Mix Dependencies Cache
	uses: actions/cache@v1
	id: mix-cache
	with:
	path: deps
	key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	- name: Get Deps
	if: steps.mix-cache.outputs.cache-hit != 'true'
	run: mix deps.get
	- name: Compile Deps
	run: mix deps.compile
	- name: Compiler Warnings
	run: mix compile --force --warnings-as-errors
	- name: Run Credo
	run: mix credo --strict
	- name: Check Format
	run: mix format --check-formatted
	- name: Run Coveralls
	run: mix coveralls --raise
	- name: Generate Docs
	run: mix docs --output test/doc
	- name: Retrieve PLT Cache
	uses: actions/cache@v1
	id: plt-cache
	with:
	path: priv/plts
	key: ${{ runner.os }}-plts-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	- name: Create PLTs
	if: steps.plt-cache.outputs.cache-hit != 'true'
	run: \|
	mkdir -p priv/plts
	mix dialyzer --plt
	- name: Run Dialyzer
	run: mix dialyzer

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