checkpoint(data-ingestion): Add method to mongo service to fetch companies with yearly results

src/aki_prj23_transparenzregister/utils/mongo/company_mongo_service.py

@@ -71,6 +71,15 @@ class CompanyMongoService:
                 self.collection.find({"$or": [{"yearly_results": {"$exists": False}}]})
             )
 
+    def get_where_yearly_results(self) -> list[dict]:
+        """Get a list of all companies with valid yearly_results (interesting entries for data loader).
+
+        Returns:
+            list[dict]: List of companies
+        """
+        with self.lock:
+            return list(self.collection.find({"yearly_results": {"$gt": {}}}))
+
     def insert(self, company: Company) -> InsertOneResult:
         """_summary_.