Lint

Bump vws-python-mock from 2025.3.10.1 to 2026.2.15 #1122

Job	Run time
build (3.13, ubuntu-latest, manual)	55s
build (3.13, windows-latest, pre-commit)	1m 23s
build (3.13, ubuntu-latest, pre-push)	1m 34s
build (3.13, windows-latest, manual)	1m 26s
build (3.13, windows-latest, pre-push)	2m 0s
build (3.13, ubuntu-latest, pre-commit)	1m 8s
completion-lint	2s
	8m 28s

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