Apply suggestion from @szaimen

Signed-off-by: Simon L. <szaimen@e.mail.de>

Author: szaimen

admin_manual/installation/deployment_comparison.rst

@@ -58,13 +58,13 @@ you choose the one that best suits your needs.
      - ❌
      - ⚠️
    * - Included database
-     - PostgreSQL
-     - PostgreSQL 16
-     - MariaDB
-     - MySQL 8.4
-     - User choice
-     - User choice
-     - User choice
+     - ✅ PostgreSQL
+     - ✅ PostgreSQL 16
+     - ✅ MariaDB
+     - ✅ MySQL 8.4
+     - ⚠️ User choice
+     - ⚠️ User choice
+     - ⚠️ User choice
    * - Redis caching included
      - ✅
      - ✅