chore: define ajv resolutions

[bobbor]

Description of changes

a run of yarn audit showed 16 ajv vulnerabilities.
these are best resolved by bumping dependencies, but since ajv is transitive dependency of babel and eslint, it is ok to work with resolutions.

Issue #, if available

- none -

Description of how you validated changes

• yarn audit -> errors gone
• lint / build passed.

Checklist

• PR description included
• yarn test passes
• Unit Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)

Checklist for repo maintainers

• Verify E2E tests for existing workflows are working as expected or add E2E tests for newly added workflows
• New source file paths included in this PR have been added to CODEOWNERS, if appropriate

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[changeset-bot]

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