Bump @linearb/gitstream-core to 2.1.280 (#533)

* bump @linearb/gitstream-core to 2.1.280

* chore(deps): update devDependencies in package.json and package-lock.json

- Bump versions for @jest/globals, @types/node, eslint, globals, jest, prettier, typescript, and typescript-eslint.
- Add license information for several packages.
- Upgrade @emnapi/core and @emnapi/runtime to version 1.10.0.
- Remove deprecated dependencies from package-lock.json.

---------

Co-authored-by: GitHub Actions Bot <actions@github.com>
Co-authored-by: Misha Kav <misha.kav@gmail.com>

Author: 3 people