Update dependency ruamel.yaml to ^0.18.0

This MR contains the following updates:

Package	Type	Update	Change
ruamel.yaml	dependencies	minor	^0.17.19 -> ^0.18.0

---

Configuration

Schedule: At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.

changed the description

added 32 commits

• 0b990af2...2409f2f2 - 31 commits from branch master
• 431d6a24 - Update dependency ruamel.yaml to ^0.18.0

Compare with previous version

mentioned in commit f312deca

merged