Merge pull request #1684 from kyoto/pf5-immutable-3.8.3

PF5: Upgrade immutable to 3.8.3

Author: openshift-merge-bot[bot]

package-lock.json

@@ -28,6 +28,7 @@
     "@patternfly/react-icons": "5.4.2",
     "copy-webpack-plugin": "^14.0.0",
     "css-loader": "^7.1.4",
+    "immutable": "^3.8.3",
     "js-yaml": "^4.1.1",
     "lodash": "^4.17.23",
     "react": "17.0.2",