Finalize repo QA compliance

[BTT21000]

As part of the TM issue https://github.com/api3dao/tasks/issues/849 for QA, some requirements need to be addressed:

Repo setup requirements as per new_repo_creation_checklist.md:

• Link to some relevant page if applicable (e.g. api3 docs, web page, ...)
• Edit the README.md if needed with high level information about the project and its scope (e.g. check networks list as needed)
• Add the relevant license file LICENSE consistent with the organizational standards or project requirements.
• Install Renovate in the repository, following the guidelines outlined in dependencyManagementStrategy.md.
• Create renovate.json configuration file in the root of the repository to manage dependencies effectively, as per our dependency management strategy.
• Set up Renovate for automated security vulnerability scanning to detect vulnerabilities in the codebase.