[FEATURE] Support lockfileV2

[perrin4869]

Using npm-merge-driver on a project with npm V7 workspaces, etc, ends up corrupting the lockfile.
I don't have a proper reproduction at hand at the moment, but the project I am working on will fail to run npm ci after merging with npm-merge-driver, failing with:

npm ERR! code E401
143 | npm ERR! Incorrect or missing password.
144 | npm ERR! If you were trying to login, change your password, create an
145 | npm ERR! authentication token or enable two-factor authentication then
146 | npm ERR! that means you likely typed your password in incorrectly.
147 | npm ERR! Please try again, or recover your password at:
148 | npm ERR!     https://www.npmjs.com/forgot
149 | npm ERR!
150 | npm ERR! If you were doing some other operation then your saved credentials are
151 | npm ERR! probably out of date. To correct this please try logging in again with:
152 | npm ERR!     npm login
153

I can confirm this is caused by npm-merge-driver because it is the only variable that I can change to fix the issue.
If it is helpful I can try to come up with a reproduction