Fix(apps)/not update app config

[JoaoMacedo03]

Description

_I encountered the same issue detailed in #183. While executing zcli apps:update within a GitHub action, the CLI overwrote the app configurations set by my client. I believe a straightforward flag to prevent the execution of the API endpoint /api/${product}/apps/installations/${installationid}.json would suffice in scenarios like mine. However, I'm open to further discussion.

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Resolves #183

Checklist

• [ ] :guardsman: includes new unit and functional tests

[fairphone-franz-geiger]

Indeed, this would be great for using zcli in CI.

Dear code owners, how can we move this forward, so that it gets merged?