Upgrade dependencies in order to fix audit issues

[GhassenRjab]

Why:

• We need to update node-fetch in order to fix an audit issue.

This change addresses the need by:

• https://github.com/MadKudu/node-hubspot/pull/311#issuecomment-1060284174

We can't update to node-fetch@3 as it is an ESM only library. We use this library with CommonJS syntax. So I updated to 2.6.7 which is a patched version.

Also, I updated some dev dependencies which had audit issues too.