package.json: hack around @novnc/novnc being updated

`@patternfly/react-console` depends on `@novnc/novnc` but allows minor
and patch version updates. A minor version of novnc broke PatternFly's
imports as they removed ES6 imports and therefore imports have to be
adjusted. Until `@patternfly/react-console` merges my PR and releases a
new version which is still compatible with PF5.

novnc/noVNC@b35cf6d
patternfly/react-console#57

package.json

@@ -60,6 +60,7 @@
     "redux-thunk": "3.1.0",
     "throttle-debounce": "5.0.0",
     "xterm": "5.1.0",
-    "xterm-addon-canvas": "0.5.0"
+    "xterm-addon-canvas": "0.5.0",
+    "@novnc/novnc": "1.4.0"
   }
 }