[tests] Update min-version for flake8-future-import

Change-Id: Ib791e6a9ff5b2867bb6f1efacfc6134054291e95
---
M tox.ini
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tox.ini b/tox.ini
index 20aec2a..8352fab 100644
--- a/tox.ini
+++ b/tox.ini
@@ -99,8 +99,6 @@
 ignore = C103,D105,D211,D401,D413,D412,FI1,H101,H238,H301,H404,H405,H903,P101,P102,P103,P205,W503
 enable-extensions = H203,H204,H205
 exclude = .tox,.git,./*.egg,build,scripts/archive/*,./scripts/i18n/*
-min-version = 2.7
-require-code = true
 classmethod-decorators = classmethod,classproperty
 
 # flake8-coding
@@ -111,6 +109,10 @@
 color = always
 format = ${blue}%(path)s${reset}: ${bold}line %(row)d:${reset}%(col)d: ${red_bold}%(code)s${reset} %(text)s
 
+# flake8-future-import
+min-version = 3.5
+require-code = true
+
 # The following are to be fixed
 # N802: function name should be lowercase
 # N803: argument name should be lowercase

