cam_test: fix raw handling (metadata, offset) for IMX462 #3250

Job	Run time
build-docstrings	7m 20s
build-linux-armhf (rpi-bookworm)	12m 10s
build-linux-armhf (rpi-bullseye)	58m 0s
pytest (windows-latest)	37m 13s
pytest (ubuntu-latest)	11m 7s
pytest (macos-latest)	7m 25s
build-linux-x86_64	42m 10s
build-linux-arm64	36m 27s
build-macos (3.8, macos-14)	12m 2s
build-macos (3.8, macos-13)	10m 47s
build-macos (3.13, macos-13)	19m 19s
build-macos (3.9, macos-13)	10m 33s
build-macos (3.12, macos-14)	8m 9s
build-macos (3.11, macos-14)	7m 51s
build-macos (3.12, macos-13)	9m 32s
build-windows-x86_64 (3.7, x64)	19m 45s
build-macos (3.11, macos-13)	10m 22s
build-macos (3.10, macos-13)	10m 8s
build-macos (3.10, macos-14)	8m 29s
build-macos (3.13, macos-14)	8m 17s
build-windows-x86_64 (3.7, x86)	21m 46s
build-windows-x86_64 (3.11, x64)	20m 9s
build-windows-x86_64 (3.8, x86)	19m 38s
build-windows-x86_64 (3.9, x86)	18m 48s
build-windows-x86_64 (3.10, x86)	21m 27s
build-windows-x86_64 (3.12, x64)	20m 12s
build-windows-x86_64 (3.8, x64)	20m 0s
build-windows-x86_64 (3.10, x64)	19m 26s
build-windows-x86_64 (3.9, x64)	19m 33s
build-windows-x86_64 (3.12, x86)	18m 32s
build-windows-x86_64 (3.13, x86)	18m 50s
build-windows-x86_64 (3.11, x86)	18m 36s
build-macos (3.9, macos-14)	8m 24s
build-windows-x86_64 (3.13, x64)	20m 9s
notify_hil_workflow	4s
release	0s
deploy	0s
	10h 12m 40s

Provide feedback