add workflow for installing dependencies with yarn as package manager

[interim17]

The setup_npm.yml workflow should hopefully work for any repo that uses npm as its project manager.

However, some repos at AICS use yarn as a package manager (idea-board, cell catalog), some also use bun (I don't know of any projects at AICS using pnpm). Different package managers might resolve dependencies differently, trying to call npm install in idea-board failed.

I added a yarn flavored version of the setup workflow and was able to call it successfully by referencing the commit in idea-board.
AllenCell/idea-board#48

[Copilot]

Pull request overview

This PR adds a reusable GitHub Actions workflow for setting up Node.js projects that use Yarn as their package manager, addressing the need to support different package managers across AICS repositories.

Changes:

• Added a new reusable workflow setup_yarn.yml with configurable Node.js and Yarn versions
• Configured the workflow to cache Yarn dependencies and install them using --frozen-lockfile flag
• Set default versions to Node.js 24 and Yarn 1.22.22

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[ShrimpCryptid]

One suggestion, otherwise LGTM

[ShrimpCryptid]

Pin specific commit hashes for security?

[interim17]

Made this workflow match the other one (v6.2.0 via hash)

[jessicasyu]

This is a good choice, we should probably make node-version and npm-version inputs in setup_npm.yml also not required

[interim17]

I'll tack that on this PR