ref #3090 (comment)

Do we want the bot commenting on the PR, at least while the early checks are wrong? People can always click on Details in the Codecov check (e.g. https://codecov.io/gh/pydata/xarray/compare/8f0d9e5c9909c93a90306ed7cb5a80c1c2e1c97d...ab6960f623017afdc99c34bcbb69b402aea3f7d4/diff) to see a full report.

Happy to PR to disable, lmk