fix: error in library crash reindex

```File"/openedx/edx-platform/openedx/core/djangoapps/content_libraries/api.py",line
617, in get_library_componentslearning_package.id,AttributeError:
'NoneType' object has no attribute'id'```

openedx/core/djangoapps/content/search/api.py

@@ -316,19 +316,23 @@ def rebuild_index(status_cb: Callable[[str], None] | None = None) -> None:
         status_cb("Indexing libraries...")
         for lib_key in lib_keys:
             status_cb(f"{num_contexts_done + 1}/{num_contexts}. Now indexing library {lib_key}")
-            docs = []
-            for component in lib_api.get_library_components(lib_key):
-                metadata = lib_api.LibraryXBlockMetadata.from_component(lib_key, component)
-                doc = {}
-                doc.update(searchable_doc_for_library_block(metadata))
-                doc.update(searchable_doc_tags(metadata.usage_key))
-                docs.append(doc)
-
-                num_blocks_done += 1
-            if docs:
-                # Add all the docs in this library at once (usually faster than adding one at a time):
-                _wait_for_meili_task(client.index(temp_index_name).add_documents(docs))
-            num_contexts_done += 1
+            try:
+                docs = []
+                for component in lib_api.get_library_components(lib_key):
+                    metadata = lib_api.LibraryXBlockMetadata.from_component(lib_key, component)
+                    doc = {}
+                    doc.update(searchable_doc_for_library_block(metadata))
+                    doc.update(searchable_doc_tags(metadata.usage_key))
+                    docs.append(doc)
+
+                    num_blocks_done += 1
+                if docs:
+                    # Add all the docs in this library at once (usually faster than adding one at a time):
+                    _wait_for_meili_task(client.index(temp_index_name).add_documents(docs))
+            except Exception as err:  # pylint: disable=broad-except
+                status_cb(f"Error indexing library {lib_key}: {err}")
+            finally:
+                num_contexts_done += 1
 
         ############## Courses ##############
         status_cb("Indexing courses...")