chore(release): publish [skip ci]

- @ohif/extension-cornerstone@0.50.5
 - @ohif/extension-dicom-html@0.50.4
 - @ohif/extension-vtk@0.50.7
 - @ohif/ui@0.50.4
 - @ohif/viewer@0.50.20

extensions/cornerstone/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-cornerstone",
-  "version": "0.50.4",
+  "version": "0.50.5",
   "description": "OHIF extension for Cornerstone",
   "author": "OHIF",
   "license": "MIT",