[BUG] Help for plugins under test

[ricochet]

When passing help after a plugin is included in wash plugin test, print the help for the plugin not wash plugin test

wash plugin test /Users/bhayes/repos/cosmonic-labs/openapi2mcp/target/wasm32-wasip2/debug/deps/openapi2mcp-6ed575558eb28471.wasm -h
Test run a plugin component to inspect its metadata or run commands and hooks. This parses the arguments just like wash does for an installed plugin, so it's functionally equivalent to run `wash
foo bar --arg 1` and `wash plugin test ./component.wasm bar --arg 1`

Usage: wash plugin test [OPTIONS] <plugin> [arg]...

Arguments:
  <plugin>  Path to the component or component project to test
  [arg]...  The arguments to pass to the plugin command

Options:
      --hook <type>            The hook types to test
  -o, --output <OUTPUT>        Specify output format (text or json) [default: text]
  -l, --log-level <LOG_LEVEL>  Set the log level (trace, debug, info, warn, error) [default: info]
      --verbose                Enable verbose output
  -h, --help                   Print help