chore(database): add postgres_exporter

chore(woodpecker): add cron event

chore(charts): change canary app version

chore(database): use podman replace docker

feat(database): switch charts to oci

chore(database): upgrade to wal-g v1.1

chore(minio): use bin mc replace docker images

chore(postgres): set max_connections = 1024

chore(README.md): change README.md