fix: allow yarn 2 resolutions when strict mode is disabled

[JamesPatrickGill]

• [x] Tests written and linted
• [ ] Documentation written / README.md updated https://snyk.io/docs/snyk-for-node/
• [x] Follows CONTRIBUTING agreement
• [x] Commit history is tidy https://git-scm.com/book/en/v2/Git-Branching-Rebasing
• [ ] Reviewed by Snyk team

What this does

Yarn 2 resolutions breaks snyk test. See #99 for details. This PR unblocks consumers that have yarn 2 resolutions when --strict-out-of-sync=false is passed to the Snyk CLI.

Notes for the reviewer See additional test case for yarn 1 and yarn 2` resolutions.

[JamesPatrickGill]

Hi, full support for resolutions in yarn2 has been introduced in v1.35 of this parser via this PR.

It is included in version 1.616.0 of the CLI 🎉

Closing this PR as a result, thank you for your contribution and insight into this problem 😃