Fix `undefined method` errors in Chain#insert_* #32

	name: CI

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest

	services:
	redis:
	image: redis
	options: >-
	--health-cmd "redis-cli ping"
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 6379:6379

	steps:
	- name: Checkout Repository
	uses: actions/checkout@master

	- name: Crystal Ameba Linter
	uses: crystal-ameba/[email protected]
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Setup Crystal
	uses: MeilCli/setup-crystal-action@master
	with:
	crystal_version: latest
	shards_version: latest

	- name: Install dependencies
	run: shards install --ignore-crystal-version

	- name: Check Formatting
	run: crystal tool format --check

	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 2.7

	- name: Install Redis Gem
	run: gem install redis

	- name: Run Tests
	run: crystal spec

	- name: Compile Examples
	run: \|
	crystal build examples/sidekiq.cr
	crystal build examples/web.cr

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