Replace LayoutStrategy buffered_bytes with a buffered bytes tracker #6597

Job	Run time
check-java-publish-build (x86_64-unknown-linux-gnu, runs-on=30557173648/runner=amd64-medium/image...	48s
Compat check / compat-test	31s
Python (wheel build)	6m 59s
Rust publish dry-run	31s
check-java-publish-build (aarch64-unknown-linux-gnu, runs-on=30557173648/runner=arm64-medium/imag...	56s
	9m 45s

Provide feedback