Always initialize the version that the CLI is invoked as, instead of just latest or next

[ndelangen]

normal cases:

npx storybook@latest init
npx storybook@next init
npx storybook@8.4.0 init
npx storybook@^8.4.0 init

// with -p
npx -p @storybook/cli@8.4.0 storybook

// with env
FOO=5 npx storybook@8.4.0 storybook

// pnpm
pnpm dlx storybook@^8.4.0 init
pnpm dlx --package @storybook/cli@8.4.0 storybook init

// yarn
yarn dlx storybook@^8.4.0 init
yarn dlx -p @storybook/cli@8.4.0 storybook init

invariant cases:

npx storybook init

edge cases:

node ../../../../mono/storybook/code/lib/cli/bin init
node ../../../../mono/storybook/code/lib/cli/dist/index.js init