Update @wordpress/scripts to its latest version

[felixarntz]

Feature Description

The @wordpress/scripts dependency (currently used on 3.4.0) should be updated to its latest version. The newer versions include / depend on a new @wordpress/jest-console package though, which requires us to change many of our Jest tests to account for this change. See #1763 (comment) for more information.

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Acceptance criteria

• @wordpress/scripts should be updated to its latest version (newer than 3.4.0).
• Fix all unexpected console logging in Jest tests. Console logging in any test which is not expected should cause the test to fail.
• There should be no errors on Site Kit screens, and tests should pass (obviously).

Implementation Brief

• Upgrade @wordpress/scripts to the latest version.
• Update javascript tests to explicitly call expect( console ).toHaveErrored(), expect( console ).toHaveWarned() or expect( console ).toHaveLogged() when a console output is expected.
• Remove muteConsole calls from all javascript tests.
• Remove muteConsole function from tests/js/utils.js file.

QA Brief

• Running npm run test:js does not result in any errors or display any unexpected console logging (all console logs should fail tests)
• App functions normally without breakage

Changelog entry

• N/A

[felixarntz]

IB ✅ , however we should only add the console expect statements if they are actually expected. For cases where an error is logged because e.g. we forgot to intercept a request that we should have intercepted, that should be fixed by intercepting it.

[aaemnnosttv]

@caseymorrisus would you please add a QA Brief here as well?

[tofumatt]

QA ✅