Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires contao-community-alliance/dc-general-contao-frontend dev-hotfix/update_phpcq as 2.3.1, found contao-community-alliance/dc-general-contao-frontend[dev-hotfix/fix_fee_upload2, dev-hotfix/upload-fee-2, dev-hotfix/add_model_to_edit_mask, dev-hotfix/add_github_actions, dev-master, dev-support/2.0, dev-support/2.1.x, dev-support/2.2.x, dev-feature/2.3.0, dev-hotfix/2.3.2, 2.1.0, ..., 2.3.x-dev (alias of dev-feature/2.3.0)] but it does not match the constraint.