bookstack: add setup_composer in update (#5935)

Author: MickLesk

ct/bookstack.sh

@@ -40,6 +40,7 @@ function update_script() {
 
     fetch_and_deploy_gh_release "bookstack" "BookStackApp/BookStack"
     PHP_MODULE="ldap,tidy,bz2,mysqli" PHP_FPM="YES" PHP_APACHE="YES" PHP_VERSION="8.3" setup_php
+    setup_composer
 
     msg_info "Restoring backup"
     cp /opt/bookstack-backup/.env /opt/bookstack/.env