Update json requirement from = 2.6.3 to = 2.7.1 #200

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	# @todo #572/DEV Assemble docker image in GitHub actions in order to replace Circle CI

	# @todo #572/DEV Test docker image in GitHub actions in order to replace Circle CI

	# @todo #572/DEV Publish docker image in GitHub actions in order to replace Circle CI

	# @todo #572/DEV Integrate rultor with GitHub action and push docker image with particular tag
	name: CI
	on: push
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Ruby
	uses: ruby/setup-ruby@359bebbc29cbe6c87da6bc9ea3bc930432750108
	with:
	ruby-version: '2.6.5'
	- uses: actions/cache@v2
	with:
	path: vendor/bundle
	key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
	restore-keys: \|
	${{ runner.os }}-gems-
	- name: Bundle install
	run: \|
	bundle config path vendor/bundle
	bundle install --jobs 4 --retry 3
	- name: Install dependencies
	run: bundle install
	- name: Run tests
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
	run: bundle exec rake -A

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