Support `pnpm@9`

[hyunbinseo]

Is your feature request related to a problem? Please describe.

The package is not compatible with the newly released pnpm@9.

This error happened while installing the dependencies of svelte-check@3.6.9

Your pnpm version is incompatible with "svelte-preprocess@5.1.3".

Expected version: ^8.0.0
Got: 9.0.0

This is happening because the package's manifest has an engines.pnpm field specified.
To fix this issue, install the required pnpm version globally.

Describe the solution you'd like

Support "pnpm": ">= 8.0.0" if possible.

svelte-preprocess/package.json

Lines 20 to 24 in c2107e5

	"engines": {
	"node": ">= 16.0.0",
	"pnpm": "^8.0.0"
	},
	"packageManager": "pnpm@8.12.1",

How important is this feature to you?

Blocking upgrade to pnpm@9.

[shinokada]

This is how I downgraded to v8.15.7.

curl https://raw.githubusercontent.com/Homebrew/homebrew-core/3dadd1917286ac77beb3fb71457a0f37fd6e391b/Formula/p/pnpm.rb > pnpm.rb

brew install pnpm.rb

[ragavpr]

Simpler downgrade way for pnpm installed in npm

pnpm setup

pnpm i -g pnpm@8

[shinokada]

When I use pnpm v9, I get the following errors:

.
├─┬ @sveltejs/vite-plugin-svelte 3.1.0
│ └─┬ svelte-hmr 0.16.0
│   └── ✕ unmet peer svelte@"^3.19.0 || ^4.0.0": found 5.0.0-next.106
├─┬ vite 5.2.9
│ └── ✕ unmet peer @types/node@"^18.0.0 || >=20.0.0": found 12.20.55
└─┬ vitest 1.5.0
  └── ✕ unmet peer @types/node@"^18.0.0 || >=20.0.0": found 12.20.55

Is it only me?