Restrict VisualRegressionTests version

Author: simonschoelly

Project.toml

@@ -20,7 +20,7 @@ ColorTypes = "0.9, 0.10"
 Colors = "0.11, 0.12"
 Compose = "0.8, 0.9"
 Graphs = "1.4"
-VisualRegressionTests = "0.3, 1"
+VisualRegressionTests = "< 1.1.0" # TODO currently visual regression tests are broken for version >= 1.1.0
 julia = "1.3"
 
 [extras]