Fix spec formatting without requiring pnpm

[CryptAm]

Motivation

scripts/update-spec.mjs currently runs Biome through pnpm exec.

The package does not declare pnpm as a dependency, while the update workflow is exposed through npm run update-spec. On Windows, when pnpm is unavailable, the formatting step fails with:

spawnSync pnpm ENOENT

The script continues after this error, leaving opensea-api.json unformatted and causing unnecessary formatting noise in the diff.

Reproduction

With pnpm unavailable:

biome format failed (continuing): spawnSync pnpm ENOENT

This resulted in a large formatting diff in opensea-api.json:

3966 additions / 1157 deletions

Solution

Replace the pnpm exec invocation with npm exec -- biome in scripts/update-spec.mjs.

This uses the existing @biomejs/biome devDependency and removes the undeclared pnpm requirement from the spec update workflow.

[ryanio]

Thanks, the problem is real: this mirror installs with npm, so pnpm exec fails and the spec is left unformatted.

We fixed it a little differently in ProjectOpenSea/opensea-devtools#789 (now merged), with you credited. The script now resolves @biomejs/biome/bin/biome through Node's module resolution and runs it with the current node binary via execFileSync. That keeps the path out of a shell string. It also avoids npm exec falling back to downloading an unrelated package named biome when Biome isn't installed locally.

This repo is a read-only mirror, so we can't merge here, but we review every PR.