v0.3.0
- METAL-1846 fix doc about adminsecret ref
- METAL-1822 upgrade default cloud_sql_proxy image to gcr.io/cloudsql-docker/gce-proxy:1.16
- METAL-1319 general instance / mysql backup support
- METAL-1830 remove /bin/sh from cloud_sql_proxy pod for distroless image
- METAL-1847 support admin username and password secret data key created by stable helm mysql/postgres