Update the Codehaus Cargo Maven plugin in the documentation

Dear Bloomreach teams

I have seen your article https://documentation.bloomreach.com/14/library/development/run-and-develop-with-cargo.html which is quite well written - Congratulations!

One thing I spotted is that it still references the old Codehaus Cargo Maven 2 plugin - Which is quite obsolete as Maven 2 itself is obsolete, and we hence also made the Codehaus Cargo plugin to be Maven 3 only since its 1.9.0 version in January 2021. Would you mind updating that in the meantime? The updated dependency information could be:

```
org.codehaus.cargo
cargo-maven3-plugin
1.9.9
```

Regards