chore: update package

package.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "@edx/brand": "npm:@edx/brand-edx.org@^2.0.3",
     "@edx/frontend-component-footer": "10.1.6",
-    "@edx/frontend-platform": "1.12.4",
+    "@edx/frontend-platform": "^1.15.6",
     "@edx/paragon": "16.14.4",
     "@fortawesome/fontawesome-svg-core": "^1.2.36",
     "@fortawesome/free-brands-svg-icons": "^5.15.4",
@@ -51,11 +51,10 @@
     "history": "5.0.1",
     "html-react-parser": "^1.3.0",
     "lodash": "^4.17.21",
-    "node-sass": "^6.0.1",
     "prop-types": "15.7.2",
     "query-string": "7.0.1",
-    "react": "17.0.2",
-    "react-dom": "17.0.2",
+    "react": "^16.14.0",
+    "react-dom": "^16.14.0",
     "react-intl": "^5.20.9",
     "react-pdf": "^5.5.0",
     "react-redux": "^7.2.4",
@@ -73,7 +72,7 @@
     "whatwg-fetch": "^3.6.2"
   },
   "devDependencies": {
-    "@edx/frontend-build": "9.1.1",
+    "@edx/frontend-build": "^9.1.4",
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^12.1.0",
     "axios-mock-adapter": "^1.20.0",
@@ -86,7 +85,7 @@
     "jest": "27.0.6",
     "jest-expect-message": "^1.0.2",
     "react-dev-utils": "^11.0.4",
-    "react-test-renderer": "^17.0.2",
+    "react-test-renderer": "^16.14.0",
     "reactifex": "1.1.1",
     "redux-mock-store": "^1.5.4",
     "semantic-release": "^17.4.5"

src/components/FilePreview/BaseRenderers/PDFRenderer.jsx

@@ -6,7 +6,7 @@ import {
   Icon, Form, ActionRow, IconButton,
 } from '@edx/paragon';
 import { ChevronLeft, ChevronRight } from '@edx/paragon/icons';
-import pdfjsWorker from 'react-pdf/node_modules/pdfjs-dist/build/pdf.worker.entry';
+import pdfjsWorker from 'react-pdf/dist/esm/pdf.worker.entry';
 
 import 'react-pdf/dist/esm/Page/AnnotationLayer.css';