Your requirements could not be resolved to an installable set of packages.
Problem 1
- drupal/search_api[1.32.0, ..., 1.x-dev] require drupal/core ^10.1 || ^11 -> found drupal/core[10.1.0-alpha1, ..., 10.4.x-dev, 11.0.0-alpha1, ..., 11.x-dev] but it conflicts with your root composer.json require (9.5.11).
- drupal/acquia_cms_starter dev-develop requires drupal/acquia_cms_search ^1.4.13 -> satisfiable by drupal/acquia_cms_search[1.x-dev (alias of dev-develop)].
- drupal/acquia_cms_search 1.x-dev is an alias of drupal/acquia_cms_search dev-develop and thus requires it to be installed too.
- acquia/acquia_cms dev-develop requires drupal/acquia_cms_starter dev-develop -> satisfiable by drupal/acquia_cms_starter[dev-develop].
- drupal/acquia_cms_search dev-develop requires drupal/search_api ^1.32 -> satisfiable by drupal/search_api[1.32.0, ..., 1.x-dev].
- Root composer.json requires acquia/acquia_cms * -> satisfiable by acquia/acquia_cms[dev-develop].