Create a Cloud Logging sink for superset logs

[bendnorman]

By default, Cloud Run logs are only saved for 30 days. We should create a log sink so we can save logs for longer! Most of the useful logging information is also saved in the superset postgres db but it can't hurt to save the more detailed cloud runs logs as well. The cloud run logs include logs with resource information in addition to the logs emitted by the container. We should double check what this would cost.