Update pytest from 3.6.2 to 3.6.3 (#3759)
Update pytest from 3.6.2 to 3.6.3 (#3759)


edmorley/treeherder,KWierso/treeherder,edmorley/treeherder,KWierso/treeherder,KWierso/treeherder,KWierso/treeherder,edmorley/treeherder,edmorley/treeherder