Cython broke our CI with 3.2.6 due to [Cython 7675](https://github.com/cython/cython/issues/7675). We have prevented its install in CI with [5208](https://github.com/firedrakeproject/firedrake/pull/5208). This should be removed when 3.2.7 is released on PyPi.
Cython broke our CI with 3.2.6 due to Cython 7675.
We have prevented its install in CI with 5208.
This should be removed when 3.2.7 is released on PyPi.