feat: expand l2ep to new chains

[KodeyThomas]

Description

Expands L2EP to 4 new chains (Ink, Mantle, Unichain & Soneium)

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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.

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🦋 Changeset detected

Latest commit: 59a8446

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

This PR includes changesets to release 1 package

Name	Type
@chainlink/layer2-sequencer-health-adapter	Minor

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[mohamed-mehany]

LGTM!
A few non blocking things to follow up on:

1. Can we please check with the teams for those chains if we have sequencer health endpoints? If they already have it, it's usually a much stronger signal for indication the chain health.
2. Do NOPs already have dedicated RPCs for those chains? I assume yes, but we need to check as we prefer NOPs to use dedicated RPCs as opposed to public / 3P RPCs for L2EP.
3. We can proceed to make the infra-k8s env changes for testnet with internal RPCs if we have them but not a hard requirement for testnet.