2.6.8 regression - malformed types block usage

[benmccann]

Describe the bug

We can't upgrade SvelteKit to the latest Vite because we get this error:

│ ../../node_modules/.pnpm/vite@2.6.8/node_modules/vite/dist/node/index.d.ts(38,23): error TS7016: Could not find a declaration file for module 'ws'. 'node_modules/.pnpm/ws@7.5.5/node_mod
│   Try `npm i --save-dev @types/ws` if it exists or add a new declaration (.d.ts) file containing `declare module 'ws';

Reproduction

git clone git@github.com:sveltejs/kit.git
cd kit
pnpm install
pnpm run check

System Info

Vite 2.6.8

Used Package Manager

pnpm

Logs

No response

Validations

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• The provided reproduction is a minimal reproducible example of the bug.