🤖 Sync labels (org-wide file) with upstream repo (#1005)
🤖 Sync labels (org-wide file) with upstream repo (#1005)

Change x:-label colours to white
https://github.com/exercism/org-wide-files/pull/105

The current colours draw a lot of attention and make it hard to find
issues on GitHub for maintainers.

Note that you can overwrite the colours through the `.appends` file by
redefining the label on a per-repo basis.
exercism/xhaskell