Quote paths properly

[alqu]

When using paths for exclusion then the path itself is not properly escaped in the resulting restic call.

E.g.

locations:
  hdd:
    from:
      - /Users
    to:
      - myBackupTarget
    options:
      backup:
        exclude:
          - ~/Library/Group Containers
          - .DS_Store
          - ~/Library/Caches
          # - ...

Gets expanded to the following command:

> Executing: /opt/homebrew/bin/restic backup --exclude ~/Library/Group Containers --exclude .DS_Store --exclude ~/Library/Caches --tag ar:location:hdd /Users
using parent snapshot 123456

Expected behavior
Paths that contain blanks should be escaped properly like:

> Executing: /opt/homebrew/bin/restic backup --exclude ~/Library/Group\ Containers --exclude .DS_Store --exclude ~/Library/Caches --tag ar:location:hdd /Users
using parent snapshot 123456

Environment

• OS: MacOS
• Version: 13.2.1

Additional context
Installed autorestic via homebrew and created a config file in ~/.autorestic.yml