Bump Python version to 3.8.5 for Windows GitHub Actions setup (#1061)
Bump Python version to 3.8.5 for Windows GitHub Actions setup (#1061)

Bump the python version to 3.8.5 as GitHub Actions upgrades Windows.

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>
tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io