Update tensorflow requirement from !=2.6.0,!=2.6.1,<2.15.0,>=2.0.0 to >=2.0.0,!=2.6.0,!=2.6.1,<2.19.0

Update tensorflow requirement from !=2.6.0,!=2.6.1,<2.15.0,>=2.0.0 to >=2.0.0,!=2.6.0,!=2.6.1,<2.19.0 #411