feat: support update: "none" and add docs about snapshots behavior on CI#9700

sheremet-va merged 8 commits into

vitest-dev:mainvitest-dev/vitest:mainfrom

hi-ogawa:02-20-feat_support_update_none_and_add_docs_about_ci_behaviorhi-ogawa/vitest:02-20-feat_support_update_none_and_add_docs_about_ci_behaviorCopy head branch name to clipboard