Conflict between wp-cli required in composer and platform.app.yaml

[gilzow]

TL;DR - update .platform.app.yaml to require the same version of wp-cli/wp-cli-bundle as composer.json instead of wp-cli/wp-cli.

In platform.app.yaml, we list wp-cli (just the core framework package) as a dependency.

In composer.json we require the wp-cli-bundle (the full cli tool, not just the framework).

The instance of wp-cli required in .platform.app.yaml is installed to /app/.global/wp-cli/wp-cli/ and a link in /app/.global/vendor/bin. The instance required in composer.json is installed to /app/vendor/wp-cli with a link in /app/vendor/bin. Since /app/.global/vendor/bin is added to $PATH, this instance of wp-cli that is called with wp is the one in .global.

In wp-config.php we require the composer autoloader from the local composer install. We've now loaded two different autoloader files with potentially different versions of dependencies.