remove trajan as core dep #492

Job	Run time
mypy	4m 1s
py3.13 \| macos \| integration tests	16m 21s
py3.13 \| macos \| unit tests	10m 15s
py3.13 \| ubuntu \| integration tests	17m 21s
py3.13 \| ubuntu \| unit tests	13m 42s
py3.13 \| windows \| integration tests	29m 7s
py3.13 \| windows \| unit tests	21m 3s
py3.10 \| ubuntu \| integration tests	17m 41s
py3.10 \| ubuntu \| unit tests	13m 29s
py3.11 \| ubuntu \| unit tests	13m 35s
py3.12 \| ubuntu \| unit tests	14m 24s
merge-test-artifacts	2s
	2h 51m 1s

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