Remove timestamps keyword from Field and FieldSet #704

Job	Run time
mypy	3m 30s
py3.13 \| macos \| integration tests	13m 34s
py3.13 \| macos \| unit tests	8m 36s
py3.13 \| ubuntu \| integration tests	14m 27s
py3.13 \| ubuntu \| unit tests	10m 2s
py3.13 \| windows \| integration tests	24m 33s
py3.13 \| windows \| unit tests	13m 10s
py3.10 \| ubuntu \| integration tests	14m 3s
py3.10 \| ubuntu \| unit tests	10m 40s
py3.11 \| ubuntu \| unit tests	10m 7s
py3.12 \| ubuntu \| unit tests	10m 36s
merge-test-artifacts	0s
	2h 13m 18s

Provide feedback