Upgrade the dash-vtk demo

Former-commit-id: f4712ac

Author: xhlulu

apps/dash-vehicle-geometry/requirements-real.txt

@@ -7,7 +7,7 @@ dash-core-components==1.15.0
 dash-html-components==1.1.2
 dash-renderer==1.9.0
 dash-table==4.11.2
-dash-vtk==0.0.6
+dash-vtk==0.0.7
 Flask==1.1.2
 Flask-Compress==1.9.0
 future==0.18.2