Remove console.log redirect to stderr

[jeffcharles]

Description of the change

Changes the default Javy plugin to use the default javy crate setting of false for redirecting console.log to the standard error stream and removes the redirect-stdout-to-stderr configuration option from the default plugin and the CLI. So console.log now writes to standard output.

Why am I making this change?

The behaviour of writing console.log to standard error is unusual and users found it confusing. If someone wants to have console.log write to standard error, they can use a Javy plugin to get that behaviour.

Checklist

• I've updated the relevant CHANGELOG files if necessary. Changes to javy-cli and javy-plugin do not require updating CHANGELOG files.
• I've updated the relevant crate versions if necessary. Versioning policy for library crates
• I've updated documentation including crate documentation if necessary.