OPDATA-3708 USDO add Solana reserves to token balance

[Subarna-Singh]

Closes #OPDATA-3708

https://smartcontract-it.atlassian.net/browse/OPDATA-3708

Description

USDO PoR is being extended to include Solana-based reserves, beginning with TBILL tokens that back USDO on Solana.
The token-balance EA should:

• Query the TBILL (SOL) token account at 4MmJVdwYN8LwvbGeCowYjSx7KoEi6BJWg8XXnW4fDDp6 to fetch the balance.
• Retrieve the TBILL price from the on-chain price oracle (Ethereum or Arbitrum).
• Multiply the balance by the oracle price to calculate the USD value of Solana reserves.
• Contribute this USD value to the composite USDO PoR output so it reflects Solana reserves alongside existing assets.

Changes

Added new endpoint usdoSolana.

Steps to Test

yarn test packes/source/token-balance/test/unit
yarn test packes/source/token-balance/test/integration

Quality Assurance

• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant infra-k8s configuration file.
• If a new adapter was made, or an existing one was modified so that its environment variables have changed, update the relevant adapter-secrets configuration file or update the soak testing blacklist.
• If a new adapter was made, or a new endpoint was added, update the test-payload.json file with relevant requests.
• The branch naming follows git flow (feature/x, chore/x, release/x, hotfix/x, fix/x) or is created from Jira.
• This is related to a maximum of one Jira story or GitHub issue.
• Types are safe (avoid TypeScript/TSLint features like any and disable, instead use more specific types).
• All code changes have 100% unit and integration test coverage. If testing is not applicable or too difficult to justify doing, the reasoning should be documented explicitly in the PR.

[changeset-bot]

🦋 Changeset detected

Latest commit: 0b3fb3c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@chainlink/token-balance-adapter	Major
@chainlink/proof-of-reserves-adapter	Patch
@chainlink/renvm-address-set-adapter	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[Subarna-Singh]

@dskloetc I have fixed the issues based on your comment.
Including

1. using getToken [will fix the function in another PR, as you suggested]
2. Added error handling, if getParsedTokenAccountsByOwner returns no value.

Cases where value will be empty ([]):

• Wallet never received that token
• Token account closed
• Wrong mint PublicKey
• Wrong wallet PublicKey
• RPC node lag / data not yet finalized (rare)