Remove data_full_zdim from fieldfilebuffer #755

Job	Run time
mypy	3m 24s
py3.13 \| macos \| unit tests	9m 41s
py3.13 \| macos \| integration tests	11m 14s
py3.13 \| ubuntu \| unit tests	9m 57s
py3.13 \| ubuntu \| integration tests	33m 35s
py3.13 \| windows \| unit tests	13m 41s
py3.13 \| windows \| integration tests	39m 3s
py3.10 \| ubuntu \| unit tests	10m 50s
py3.10 \| ubuntu \| integration tests	15m 32s
py3.11 \| ubuntu \| unit tests	10m 36s
py3.12 \| ubuntu \| unit tests	10m 28s
merge-test-artifacts	1s
	2h 48m 2s

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