Implement the logic in the MCO Daemon to collect the defined metrics and send them to Prometheus. For the Prometheus side of things, this will involve some manipulation in `metrics.go`.

Acceptance Criteria:
1. The MCO daemon should collect package installation data (defined from the spike MCO-1275) during its normal operation.
2. The daemon should report this data to Prometheus at a specified time interval (defined from spike MCO-1277).
3. Include error handling for scenarios where the rpm-ostree command fails or returns unexpected results.