Update FreeType used in binary wheels to 2.10.4 to fix CVE-2020-15999:

We strongly recommend updating to Pillow 8.0.1 if you are using Pillow 8.0.0, which improved support for bitmap fonts.

In Pillow 7.2.0 and earlier bitmap fonts were disabled with FT_LOAD_NO_BITMAP, but it is not clear if this prevents the exploit and we recommend updating to Pillow 8.0.1.

Pillow 8.0.0 and earlier are potentially vulnerable releases, including the last release to support Python 2.7, namely Pillow 6.2.2.