Eanble Sonarcloud for StreamPipes

[bossenti]

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This issue is about setting about sonarcloud for Apache StreamPipes. It's only about the integration with the repository and GitHub actions not the account creation. It would be great if different ways of integrating could be evaluated, e.g., failing CI step, adding a comment on the PR etc., and be discussed in discussion. Furthermore, it might make sense to differentiate between backend, UI and python client. Therefore, SonarCloud should be setup in monorepo-mode Finally, it would be great to extend the README with the corresponding badge.

Important ❗

Do not create any account or similar in behalf of Apache StreamPipes for sonarcloud unless you are part of the PMC! Reach out to @dominikriemer, @tenthe or @bossenti who will create the account and provide you with the necessary GitHub secrets.

Mentoring

As this ticket is marked as good first issue: one of @dominikriemer, @tenthe, or @bossenti are happy to provide help for getting started, just tag (one of) them if you want to start working on this issue and need some help. It would be great if you have already some experience with SonarCloud and have some ideas on how to configure it, but this is not necessary.

StreamPipes Committer

I acknowledge that I am a maintainer/committer of the Apache StreamPipes project.