Upgrade component-library to use node 20

[ataker]

Description

Upgrade node version to 20

Details

This PR introduced unused unit tests. These tests couldn't be used because our current version of node, 18, does not support the type File natively.

If node 20 can't be upgraded to, please add a polyfill to support File in the tests in va-file-input-multiple.spec.todo.ts.

Tasks

• Upgrade node in component-library to 20
• If that's not possible, add polyfill to test file

Acceptance Criteria

• The type File isn't causing tests in va-file-input-multiple.spec.todo.ts to fail

[ataker]

In a test run through upgrading to node 20, the only issue I ran into was in packages/react-components/scripts/build.js, line 18
return new Buffer(
needed to be updated to
return Buffer.from(
as calling new Buffer has been deprecated

[ataker]

PR from the last time node was upgraded