[Terminus 2.4.0] Conflict with php_codesniffer

[uberhacker]

In ComposerDependencyValidator.php line 120:

The plugin terminus-plugin-project/terminus-code-plugin has installed the project squizlabs/php_codesniffer: 2.9.2, but Terminus has installed squizlabs/php_codesniffer: 3.5.6. To resolve this, try running 'composer update' in both
the plugin directory, and the terminus directory.

[greg-1-anderson]

It's easier to install Terminus plugins with --no-dev to reduce the number of dependencies that need to be kept in lock-step.

Terminus support for plugins with dependency is minimal.

[uberhacker]

@greg-1-anderson: Thank you for the feedback! Good to know.