chore(ci): rewrite upgrade deps script in typescript

[camc314]

since node can nativly run typescript, lets write the script in typescript, and get all the typechecking benifits that come alongside that.

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[camc314]

• chore(ci): rewrite upgrade deps script in typescript #1514 👈 (View in Graphite)
• main

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[Copilot]

Pull request overview

This PR updates the automated “upgrade upstream dependencies” GitHub Actions workflow to use a TypeScript rewrite of the upgrade script, improving type-safety and runtime validation while keeping the script’s responsibilities (bumping upstream hashes and key tool versions, and writing metadata for PR generation) the same.

Changes:

• Switch the workflow to run the upgraded dependency script from .mjs to .ts.
• Rewrite the upgrade script with TypeScript types, stronger response-shape checks, and shared JSON-reading utilities.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/workflows/upgrade-deps.yml	Updates the workflow step (and embedded docs) to call the .ts upgrade script.
.github/scripts/upgrade-deps.ts	TypeScript refactor: adds explicit types, tighter API response validation, and small safety checks when editing JSON/YAML files.

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