Downgrade zod 3.x and upgrade dependencies

[mborne]

This pull request primarily updates dependency versions in package.json and refactors imports for the js-yaml package to use named imports throughout the codebase. These changes improve compatibility with newer versions and align with best practices for module imports.

Dependency upgrades:

• Updated several dependencies and devDependencies in package.json, including @fast-csv/format, commander, js-yaml, zod, @types/node, @vitest/coverage-v8, typescript, vite, and vitest, to their latest versions. This ensures the project benefits from the latest features, bug fixes, and security patches.

Code refactoring for js-yaml imports:

• Refactored imports in src/helpers/namespace-filters.ts and test/integration/search/search.integration.test.ts to use the named import { load as loadYAML } from js-yaml instead of the default import. Updated all usages of yaml.load to loadYAML for consistency and compatibility with the updated library. [1] [2] [3] [4]