[v3] Makes data contiguous in v2 codec #2003

Job	Run time
py=3.11-min_deps	10m 7s
py=3.13-upstream	9m 9s
os=ubuntu-latest, py=3.11, np=1.25, deps=minimal	9m 15s
os=ubuntu-latest, py=3.11, np=1.25, deps=optional	9m 13s
os=ubuntu-latest, py=3.11, np=2.1, deps=minimal	9m 19s
os=ubuntu-latest, py=3.11, np=2.1, deps=optional	9m 8s
os=ubuntu-latest, py=3.12, np=1.25, deps=minimal	10m 23s
os=ubuntu-latest, py=3.12, np=1.25, deps=optional	10m 43s
os=ubuntu-latest, py=3.12, np=2.1, deps=minimal	9m 48s
os=ubuntu-latest, py=3.12, np=2.1, deps=optional	9m 57s
os=ubuntu-latest, py=3.13, np=1.25, deps=minimal	12m 18s
os=ubuntu-latest, py=3.13, np=1.25, deps=optional	12m 16s
os=ubuntu-latest, py=3.13, np=2.1, deps=minimal	9m 54s
os=ubuntu-latest, py=3.13, np=2.1, deps=optional	9m 44s
os=macos-latest, py=3.11, np=1.25, deps=optional	6m 14s
os=macos-latest, py=3.13, np=2.1, deps=optional	5m 19s
os=windows-latest, py=3.11, np=1.25, deps=optional	12m 19s
os=windows-latest, py=3.13, np=2.1, deps=optional	11m 58s
	2h 57m 4s

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