Use insecure HTTP if enabled as build option

[opatut]

For debugging, it is easier to just flip a flag :)

[sonarqubecloud[bot]]

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[amandel]

Looks good for local testing. Please make additionally sure that the configured portal url does not start with https might be in Uploader::uploadFile, setting mLastStatusMessage to avoid a insecure connection is created while the user expects a secure one.