Issue with building docs on Ubuntu 22.04.1

[steph237]

What happened?

make html fails to build with the following error
Tips on how to fix this issue will be appreciated

What did you expect to happen?

No response

Minimal Complete Verifiable Example

No response

MVCE confirmation

• Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue in xarray.
• Complete example — the example is self-contained, including all data and the text of any traceback.
• Verifiable example — the example copy & pastes into an IPython prompt or Binder notebook, returning the result.
• New issue — a search of GitHub Issues suggests this is not a duplicate.

Relevant log output

No response

Anything else we need to know?

No response

Environment

[keewis]

as discussed on discord, the reason for that failure is that current versions of numba are incompatible with numpy>=1.24. Downgrading to numpy<1.24 should get the docs to build successfully.