fix(deps): move standard-version to devDependencies

[MaxAdams98]

standard-version sits in dependencies in packages/core/package.json, so it installs into every consumer of nitro-web.

It is release tooling. Nothing in the shipped code imports it — the only references are nitro's own scripts:

"major": "npm run types && standard-version -a --release-as major && npm publish && ...",
"minor": "npm run types && standard-version -a --release-as minor && npm publish && ...",
"patch": "npm run types && standard-version -a --release-as patch && npm publish && ...",

That alone makes devDependencies the right home, but it also has a practical cost. The entry is a git dependency:

"standard-version": "github:boycce/standard-version"

so consumers installing somewhere without git or an SSH key — CI images, Heroku build dynos — fail on a package their app never runs. npm 12 blocks git dependencies by default, so this goes from a slow install to a hard one.

We currently carry an overrides entry pointing it at an HTTPS tarball purely to get a deploy through. Moving it to devDependencies removes it from the consumer install tree entirely, so no override is needed.

Placed after @typescript-eslint/eslint-plugin to keep the block alphabetical, matching dependencies.

Note this does not cover clean-terminal-webpack-plugin in packages/webpack, which has the same git-URL problem but is genuinely imported, so it needs a decision rather than a move. Raising that separately.

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