Fix docs site dependency

[fviolette]

Description

Add missing peer dependency leading to site build error:

[3/4] 🔗 Linking dependencies...
warning "astro > zod-to-ts@1.2.0" has unmet peer dependency "typescript@^4.9.4 || ^5.0.2".
warning Workspaces can only be enabled in private projects.
[4/4] 🔨 Building fresh packages...
success Saved lockfile.
✨ Done in 13.48s.
❯ yarn build
yarn run v1.22.22
warning package.json: No license field
$ cp ../CHANGELOG.md src/content/docs/changelog.md && astro build
Cannot find package 'typescript' imported from /Users/francois.violette/git/chproxy/docs/node_modules/zod-to-ts/dist/index.js
Stack trace:
at packageResolve (node:internal/modules/esm/resolve:839:9)
at defaultResolve (node:internal/modules/esm/resolve:1038:11)
at ModuleLoader.resolve (node:internal/modules/esm/loader:523:25)
at ModuleJob._link (node:internal/modules/esm/module_job:126:49)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

Checklist

• Linter passes correctly
• Add tests which fail without the change (if possible)
• All tests passing
• Extended the README / documentation, if necessary

Does this introduce a breaking change?

• Yes
• No

Further comments

[mga-chka]

@fviolette is it normal that https://chproxy-pr-473.onrender.com/ doesn't work if the PR is supposed to fix the doc?

[fviolette]

The initial commit fixed it only locally and had silenced the warning.
The preview is now available after bumping the site builder and moving the peer to a dev dependency.