CI: Fix import type declaration not found

[RRosio]

Although CI passes there is an error:

Failed to collect coverage from /home/runner/work/jupyter-fsspec/jupyter-fsspec/src/index.ts
ERROR: src/index.ts:1:23 - error TS2307: Cannot find module 'path' or its corresponding type declarations.

1 import * as path from 'path';

• Added resolution for node types

[RRosio]

The import error is no longer present in the test run:

I'll go ahead and merge this fix!