refactor: make add_sources a public method from Knowledge

src/crewai/crew.py

@@ -335,7 +335,7 @@ class Crew(BaseModel):
                         embedder=self.embedder,
                         collection_name="crew",
                     )
-                    self.knowledge._add_sources()
+                    self.knowledge.add_sources()
 
             except Exception as e:
                 self._logger.log(

src/crewai/knowledge/knowledge.py

@@ -62,7 +62,7 @@ class Knowledge(BaseModel):
         )
         return results
 
-    def _add_sources(self):
+    def add_sources(self):
         try:
             for source in self.sources:
                 source.storage = self.storage