fix: broken export of entityToJSONSchema (payloadcms#2894)

Author: teunmooij

src/utilities/configToJSONSchema.ts

@@ -402,7 +402,8 @@ function fieldsToJSONSchema(collectionIDFieldTypes: { [key: string]: 'string' |
   };
 }
 
-function entityToJSONSchema(config: SanitizedConfig, incomingEntity: SanitizedCollectionConfig | SanitizedGlobalConfig, interfaceNameDefinitions: Map<string, JSONSchema4>): JSONSchema4 {
+// This function is part of the public API and is exported through payload/utilities
+export function entityToJSONSchema(config: SanitizedConfig, incomingEntity: SanitizedCollectionConfig | SanitizedGlobalConfig, interfaceNameDefinitions: Map<string, JSONSchema4>): JSONSchema4 {
   const entity: SanitizedCollectionConfig | SanitizedGlobalConfig = deepCopyObject(incomingEntity);
   const title = entity.typescript?.interface ? entity.typescript.interface : singular(toWords(entity.slug, true));
 

utilities.d.ts

@@ -1 +1 @@
-export * from './dist/utilities/configToJSONSchema';
+export { entityToJSONSchema } from './dist/utilities/configToJSONSchema';