Tests: disable videoPlayback test until we have a stabler test

VLC.xcodeproj/xcshareddata/xcschemes/VLC-iOS.xcscheme

@@ -47,6 +47,11 @@
                BlueprintName = "VLC-iOSUITests"
                ReferencedContainer = "container:VLC.xcodeproj">
             </BuildableReference>
+            <SkippedTests>
+               <Test
+                  Identifier = "Screenshot/testCaptureVideoPlayback()">
+               </Test>
+            </SkippedTests>
          </TestableReference>
       </Testables>
       <MacroExpansion>