Minor update to fix HA core 2025.3 compatibility

features

• added a device configuration option to allow disabling 'multiple requests packing' (might help fixing incompatible devices behavior #528)

fixes

• incompatible paho.mqtt v2 library (#531) coming in HA core 2025.3
• incompatible configuration flow management in HA core 2025.3
• error in light transition effect processing (#518)