tests: disable high memory test case

[alexfikl]

This is running with the pymbolic@attrs branch to see if there's any test case we can disable to get that running on the Github CI (seems to have memory issues). Ran

mprof run python -m pytest -v -s -m 'not slowtest' --memray --most-allocations=25 test

on koelsch to see which cases use the most memory. There's a bunch of tests at around 2GB a piece, so going through them to see if it works :(

TODO:

• Revert the pymbolic branch change in requirements.txt.

[alexfikl]

Hm, well this isn't great. I disabled the top 6 (this far) biggest memory tests (according to pytest-memray) and it's still failing..

[inducer]

Thanks for digging! A kind of desperate, but maybe effective way might be to bisect by file...?

[inducer]

Huh, not pyvkfft's fault, or at least not entirely. 🤔 At least that matches the (questionable?) findings from #59 (comment).