Update index.js

[HPSOfficial]

Added the ethpow staking pool addresses and the relevant staking token.

NOTE

1. The protocol is usually listed within 24 hours of merging the PR
2. Please fill the form below only if the PR is for listing a new protocol else it can be ignored/replaced with reason/details about the PR
3. For updating listing info It is a different repo, you can find your listing in this file: https://github.com/DefiLlama/defillama-server/blob/master/defi/src/protocols/data2.ts, you can edit it there and put up a PR
4. Do not edit/push package-lock.json file as part of your changes, we use lockfileVersion 2, and most use v1 and using that messes up our CI
5. No need to go to our discord and announce that you've created a PR, we monitor all PRs and will review it asap

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Chain:

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forkedFrom (Does your project originate from another project):

methodology (what is being counted as tvl, how is tvl being calculated):