Add a new default docker socket search path

[achimnol]

What do these changes do?

Add a new docker socket search path used by the Docker Desktop app in macOS.

Are there changes in behavior for the user?

No impacts to existing users.

Related issue number

This PR resolves #747

Checklist

• [x] I think the code is well written
• [ ] Unit tests for the changes exist
• [ ] Documentation reflects the changes
• [x] If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• [x] Add a new news fragment into the changes folder