feat(storefront): SD-10884 add support Node 20

[bc-alexsaiannyi]

What?

This PR brings support Node 20 for Cornerstone.

Requirements

• CHANGELOG.md entry added (required for code changes only)

Tickets / Documentation

• SD-10884

Screenshots (if appropriate)

locally

[rtalvarez]

by any chance were you able to upload the theme to an existing store and just make sure the bundle works fine? i dont know whether this is a regular part of the testing process during bumping these versions but it might be a good idea to do so

[bc-alexsaiannyi]

by any chance were you able to upload the theme to an existing store and just make sure the bundle works fine? i dont know whether this is a regular part of the testing process during bumping these versions but it might be a good idea to do so

Actually yes. I've created the bundle, applied to my Employee Store, and gone through main flow. I didn't see any errors there as well.