Update incorrect quote e2e test snapshot

[talldan]

What?

Closes #42814

Why?

The snapshot was committed with the wrong data. The test types a '2' character:

gutenberg/packages/e2e-tests/specs/editor/blocks/quote.test.js

Lines 146 to 149 in 3a2e02b

	await page.keyboard.type( '2' );
	// Expect the paragraph to be merged into the quote block.
	expect( await getEditedPostContent() ).toMatchSnapshot();

But that's missing from the snapshot that was committed in #42780:

gutenberg/packages/e2e-tests/specs/editor/blocks/__snapshots__/quote.test.js.snap

Lines 101 to 111 in 3a2e02b

	exports[`Quote can be split at the end 1`] = `
	"<!-- wp:quote -->
	<blockquote class=\\"wp-block-quote\\"><!-- wp:paragraph -->
	<p>1</p>
	<!-- /wp:paragraph --></blockquote>
	<!-- /wp:quote -->
	<!-- wp:paragraph -->
	<p></p>
	<!-- /wp:paragraph -->"
	`;

How?

Updates the snapshot.

It's likely this test is flakey and when the original snapshot that was generated in the PR was an instance where the test failed.

So I fully expect it to be reported as flakey again, and if that happens it might be worth skipping the test.

[ellatrix]

Thanks! For me the test now fails locally.

We should add await page.evaluate( () => new Promise( window.requestIdleCallback ) ); before typing '2'. I added it in this PR:

https://github.com/WordPress/gutenberg/pull/42711/files#diff-fb8309a04b81f367af2589e71d50c3d767836848594660bf83bc0cd6b315bc38