refactor(benches-nft): use structs whenever possible#3299

skywardboundd wants to merge 3 commits intomaintact-lang/tact:mainfrom

3298-use-structs-instead-of-buildingparsing-cells-in-benchmarks-nfttact-lang/tact:3298-use-structs-instead-of-buildingparsing-cells-in-benchmarks-nftCopy head branch name to clipboard