Bump bandit from 1.6.3 to 1.7.0 (#666)

dependabot[bot] · web-flow · commit e09e208742ef · 2020-12-23T10:13:14.000+01:00
diff --git a/requirements/requirements_dev.txt b/requirements/requirements_dev.txt
@@ -1,6 +1,6 @@
 # https://github.com/HypothesisWorks/hypothesis/issues/2113 
 attrs>=19.2.0
-bandit==1.6.3
+bandit==1.7.0
 black==20.8b1
 dlint==0.11.0
 flake8==3.8.4
