use assert_allcose on test_resample_loffset

[sebix]

test_resample_loffset failed on i586 with Python 3.9 as it used
assert_identical.
Changed to the more permissive assert_allclose.

• Closes Test test_resample_loffset fails on i586 with Python 3.9 #5341
• Tests added
• Passes pre-commit run --all-files
• User visible changes (including notable bug fixes) are documented in whats-new.rst
• New functions/methods are listed in api.rst

[max-sixty]

Thanks @sebix

Do we know where the difference is coming from? If I'm reading the test correctly, the floats aren't related to the offset — which is on discrete values — and so this may be a broader problem. Is that right?

[sebix]

Thanks @sebix

Do we know where the difference is coming from? If I'm reading the test correctly, the floats aren't related to the offset — which is on discrete values — and so this may be a broader problem. Is that right?

Sorry, I have no more insight, I just know that the test is failing on that particular architecture (x86_64, ppc64, ppc64le, aarch64 are fine).

[max-sixty]

Does anyone have a better idea than I do (very little) on this?

[max-sixty]

I missed that @dcherian had suggested this. Merged. Many thanks @sebix .