Fix Budget::memory_bytes_cost #3203

Job	Run time
build-fuzz	2m 20s
docs	4m 57s
cargo-deny (advisories)	2m 39s
cargo-deny (bans licenses sources)	2m 22s
build-and-test (ubuntu-latest, x86_64-unknown-linux-gnu)	5m 42s
build-and-test (macos-latest, x86_64-apple-darwin)	21m 32s
build-and-test (macos-latest, aarch64-apple-darwin)	16m 4s
build-and-test (windows-latest, x86_64-pc-windows-msvc)	23m 20s
fmt	7s
rust-analyzer-compat	3m 37s
publish-dry-run	0s
complete	1s
	1h 22m 41s

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