Error: required flag(s) "package" not set
Usage:
  confluent schema-registry cluster upgrade [flags]

Examples:
Upgrade Schema Registry to the "advanced" package for environment "env-123456".

  $ confluent schema-registry cluster upgrade --package advanced --environment env-123456

Flags:
      --package string       REQUIRED: Specify the type of Stream Governance package as "essentials" or "advanced".
      --context string       CLI context name.
      --environment string   Environment ID.
  -o, --output string        Specify the output format as "human", "json", or "yaml". (default "human")

Global Flags:
  -h, --help            Show help for this command.
      --unsafe-trace    Equivalent to -vvvv, but also log HTTP requests and responses which might contain plaintext secrets.
  -v, --verbose count   Increase verbosity (-v for warn, -vv for info, -vvv for debug, -vvvv for trace).

