Merge pull request #818 from Labelbox/1024-str-metadata

increase max string len to 1024

Author: msokoloff1

labelbox/schema/data_row_metadata.py

@@ -33,7 +33,7 @@ class DataRowMetadataSchema(BaseModel):
 DataRowMetadataSchema.update_forward_refs()
 
 Embedding: Type[List[float]] = conlist(float, min_items=128, max_items=128)
-String: Type[str] = constr(max_length=500)
+String: Type[str] = constr(max_length=1024)
 
 
 # Metadata base class