Bumps the minimum python version to 3.5 to match bitbake and the test
matrix
(From OE-Core rev: df13c0f2348898023fb7ee1b229e9b5ccc893609)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>