chore: Upgrade Jest, and peer dependencies, to v28 [CLI-124]

[j-luong]

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What does this PR do?

This PR updates Jest from Jest@^27 to Jest@^28. Jest peer dependencies were also updated.

Where should the reviewer start?

No new tests written as we're just upgrading dev dependencies, not changing/adding functionality.

Validate behaviour is unchanged. This PR impact only the legacy CLI, but includes a major TypeScript version change.

Risk assessment

Medium

Major version upgrades impact only dev dependencies

How should this be manually tested?

Can be manually tested with a local binary.

• make clean
• make build
• .../binary-releases/snyk-<OS>-<ARCH> <COMMAND> <OPTS>

Any background context you want to provide?

What are the relevant tickets?

Screenshots

Additional questions