Allow to retry the queue at interval

• test(manager): improve test coverage (4978d23)
• feat(bus): allow to process retry queue externally (bc9db42)
• feat(bus): add retry interval settings (0d58398)
• test(drivers): fix timeout (94edd97)
• test(helpers): rename the chaos transport (357234d)
• test(drivers): rename redis testing group (160d332)
• test(drivers): add memory transport tests (cbc9989)
• chore(package): increase required node version to match LTS (17e92fa)

Full Changelog: v0.1.1...v0.2.0