config: base field override for provider field on case provision

config/core.base_field_override.oc_case_provision.trainer.oc_provider.yml

@@ -0,0 +1,20 @@
+uuid: 3494c18a-3027-4c58-a526-076e54907881
+langcode: en
+status: true
+dependencies:
+  config:
+    - opencase_cases.oc_case_provision_type.trainer
+id: oc_case_provision.trainer.oc_provider
+field_name: oc_provider
+entity_type: oc_case_provision
+bundle: trainer
+label: Trainer
+description: ''
+required: true
+translatable: true
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: default
+  handler_settings: {  }
+field_type: entity_reference