Add migrated field instance settings

drupal10/config/field.field.node.event.field_sponsors.yml

@@ -0,0 +1,29 @@
+uuid: 938a028e-baee-4e1b-a836-b350c2746b81
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_sponsors
+    - node.type.event
+id: node.event.field_sponsors
+field_name: field_sponsors
+entity_type: node
+bundle: event
+label: Sponsors
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:node'
+  handler_settings:
+    target_bundles:
+      sponsor: sponsor
+    sort:
+      field: title
+      direction: ASC
+    behaviors:
+      views-select-list:
+        status: 0
+field_type: entity_reference