Revert "Revert "feat: update special exams lib (#1152)" (#1154)" (#1161)

This reverts commit 1871e49.

The original PR was reverted due to it's deploy coinciding with the app breaking. Turns out it was not the root cause.

package.json

@@ -32,7 +32,7 @@
     "@edx/brand": "npm:@edx/[email protected]",
     "@edx/frontend-component-footer": "12.0.0",
     "@edx/frontend-component-header": "4.0.0",
-    "@edx/frontend-lib-special-exams": "2.19.1",
+    "@edx/frontend-lib-special-exams": "2.20.1",
     "@edx/frontend-platform": "4.3.0",
     "@edx/paragon": "20.46.0",
     "@edx/react-unit-test-utils": "npm:@edx/[email protected]",