prometheus/log was removed. Switched to uber/zap and added metrics.
Release Note
Replace deprecated upstream logging package in azure blobstore implementation. Previously this used `prometheus/log` which was removed in the recent release. We've replaced this with `uber/zap`, but **there may be differences in how the log output appears!** To reduce the dependency on log output, we've also added two new metrics: `azure/refresh_failed` and `azure/refresh_expired` to track when the Azure credential expires in a log-agnostic way.
prometheus/log
was removed. Switched touber/zap
and added metrics.Release Note