Solve a QOS warning

[brustolin]

Description

Fix the following warning for SentryOnDemandReplay.renderVideo:

Thread running at User-initiated quality-of-service class waiting on a lower QoS thread running at Default quality-of-service class. Investigate ways to avoid priority inversions

[theedov]

Same warning when using session replay

        SentrySDK.start { options in
            guard let self = self else { return }
            options.dsn = ""
            options.enableWatchdogTerminationTracking = false
#if os(iOS)
            options.sessionReplay.onErrorSampleRate = 1.0
            options.sessionReplay.sessionSampleRate = 0.1
            options.attachScreenshot = true
#endif
        }

[brustolin]

Yes @theedov, this is related to Session Replay.

[brustolin]

Duplication of #4730.