Modernize CI

[ariesclark]

No description provided.

[Copilot]

Pull request overview

This PR modernises the repository’s CI/release workflow and introduces a couple of reusable composite actions, while also pinning the project’s package manager to pnpm 11.

Changes:

• Update CI workflow actions/steps (checkout, pnpm/bun setup, artifact upload/download) and add downstream reusable workflow jobs for SDK builds.
• Add packageManager pin and include @actions/artifact as a devDependency for artifact uploads.
• Add composite actions for installing OpenAPI Generator and downloading the bundled spec.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Lockfile update to include @actions/artifact and its transitive dependencies.
package.json	Pins pnpm version and adds @actions/artifact to devDependencies.
.github/workflows/ci.yaml	Refactors CI jobs and introduces reusable workflow fan-out for downstream builds.
.github/actions/setup-generator/action.yml	New composite action to cache and install a pinned openapi-generator jar.
.github/actions/download/action.yml	New composite action to fetch a bundle from artifacts (in-repo) or latest release (external).

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

Suppressed comments (2)

.github/workflows/ci.yaml:83

• pnpm/setup@v2 does not exist and the bundle job currently never installs dependencies, so bun --bun run bundle and the subsequent require('@actions/artifact') in github-script will fail. Use a valid pnpm setup action and run an install step before bundling/uploading artifacts.

 - uses: pnpm/setup@v2
with:
runtime: bun@latest
cache: true

.github/workflows/ci.yaml:155

• The release job uses pnpm (e.g., pnpm semver) but the current setup step references pnpm/setup@v2 (nonexistent) and does not ensure a Node version compatible with pnpm 11. Pin Node >=22 and use a valid pnpm setup action so release version computation is reliable.

 - uses: pnpm/setup@v2
with:
runtime: bun@latest
cache: true

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[pkg-pr-new]

pnpm add https://pkg.pr.new/vrchatapi/specification/vrchat@ae182d3

commit: ae182d3