feat: update snyk-ls [IDE-172]

[teodora-sandu]

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What the PR does

Updates snyk-ls to the latest release which contains some refactoring and also an update to use code-client-go and return fake Snyk Code ignores behind a feature flag.

This is part of some refactoring work.

What are the relevant tickets?

https://snyksec.atlassian.net/browse/IDE-175