[Buildroot] [git commit] support/docker: use python3-flake8

[Peter Korsgaard]

>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at bootlin.com> writes:

 > commit: https://git.buildroot.net/buildroot/commit/?id=385c4da3dd10b6bfbaf23c04f48e7835ce5cc701
 > branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

 > support/scripts/pkg-stats now uses some Python 3.x only constructs
 > ("async" and related keywords), so we must use the Python 3.x flake8.

 > Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>

Committed to 2020.02.x and 2020.05.x, thanks.

-- 
Bye, Peter Korsgaard