fix for QGIS 3.32: setSuppress became stricter (#383)

```
TypeError: QgsEditFormConfig.setSuppress(): argument 1 has unexpected type 'int'
```

So pass it the equivalent enum instead.

qgis/widgets/ribasim_widget.py

@@ -13,7 +13,7 @@
 from ribasim_qgis.widgets.nodes_widget import NodesWidget
 from ribasim_qgis.widgets.output_widget import OutputWidget
 
-from qgis.core import QgsMapLayer, QgsProject
+from qgis.core import QgsEditFormConfig, QgsMapLayer, QgsProject
 
 PYQT_DELETED_ERROR = "wrapped C/C++ object of type QgsLayerTreeGroup has been deleted"
 
@@ -142,7 +142,11 @@ def add_layer(
         maplayer = QgsProject.instance().addMapLayer(layer, add_to_legend)
         if suppress is not None:
             config = maplayer.editFormConfig()
-            config.setSuppress(1 if suppress else 0)
+            config.setSuppress(
+                QgsEditFormConfig.SuppressOn
+                if suppress
+                else QgsEditFormConfig.SuppressDefault
+            )
             maplayer.setEditFormConfig(config)
         if renderer is not None:
             maplayer.setRenderer(renderer)