Migrate to Composer 2.x

[cristiroma]

For the moment the setup does not work with Composer 2. Activities:

• Update plugins (composer/installers, cweagans/composer-patches etc.)
• Remove drupal-composer/drupal-scaffold and replace with drupal/core-composer-scaffold
• Remove drupal/core with drupal/core-recommended
• Remove zaporylie/composer-drupal-optimizations - Features already part of Composer 2
• Not sure drupal/console-extend-plugin is actually used in the project?

The "composer/installers" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.
The "cweagans/composer-patches" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.
The "drupal/console-extend-plugin" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.
The "drupal-composer/drupal-scaffold" plugin was skipped because it requires a Plugin API version ("^1.0.0") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.
The "zaporylie/composer-drupal-optimizations" plugin was skipped because it requires a Plugin API version ("^1.1") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.