Monitor ws endpoints with script execution

[mmaurello]

Description

Create a script to check if ws endpoints are alive
Create a cron execution for it every 30 minutes

Checklist

• If this requires a documentation change, I have created a PR in moonbeam-docs repository.
• If this requires it, I have updated the Readme
• If necessary, I have updated the examples
• I have verified if I need to create/update unit tests
• I have verified if I need to create/update acceptance tests
• If necessary, I have run acceptance tests on this branch in CI

[changeset-bot]

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Latest commit: 31174a9

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