feat(bucket-object): add object metadata [15/n]#3276

sadhansood wants to merge 1 commit intosadhan/14-bucket-object-headersMystenLabs/walrus:sadhan/14-bucket-object-headersfrom

sadhan/15-bucket-object-metadataMystenLabs/walrus:sadhan/15-bucket-object-metadataCopy head branch name to clipboard