Update to 3.9.5 and 3.8.10

[isuruf]

They are out today.

[cgohlke]

Python 3.9.3 breaks the ABI. See https://bugs.python.org/issue43710 and python/cpython#25160

[isuruf]

Thanks @cgohlke for the info

[isuruf]

3.9.4 has been released now which fixes the ABI.

[gatto]

If I could propose changing the title to

Update to 3.9.5 and 3.8.10
😀

[isuruf]

Sure. 3.9.4 is failing at #460 where some patches fail to apply. I guess we'll have patch failures in 3.9.5 too