Update Package Version to v1.6.2

* Avoid map key conflict for document results

We currently can't have VerticalResults for document verticals since
two results from the same entity will cause a map key conflict.
To resolve this, we are making the key the result ID and the result
index which should always be unique.

J=WAT-4282
TEST=manual,auto

Created a test document search config on the test-site which previously
failed to return VerticalResults properly due to the key error
now returns the results and updates on a new search

* Update snapshots

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Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Version 1.6.2
**Fixes**
- Enables Document Verticals to use VerticalResult by adjusting VerticalResult map key to combine the result id and index avoiding conflicts #456