Compatibility with Drupal 11.2.2 [#3536132]

Problem/Motivation

On Drupal 11.2.2 I get the following error

PHP Fatal error:  Declaration of Drupal\rocketship_core\RocketshipConfigInstaller::installDefaultConfig($type, $name) must be compatible with Drupal\Core\Config\ConfigInstallerInterface::installDefaultConfig($t
ype, $name, Drupal\Core\Config\DefaultConfigMode $mode = Drupal\Core\Config\DefaultConfigMode::All) in /var/www/html/docroot/modules/contrib/rocketship_core/src/RocketshipConfigInstaller.php on line 69

Steps to reproduce

Run drush updb after updating a site to Drupal 11.2.2

Proposed resolution

Make it compatible

Remaining tasks

Code

Issue fork rocketship_core-3536132

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3536132-compatibility-with-drupal changes, plain diff MR !152
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