e2e:fix WP Editor Meta Boxes test (WordPress#68872)

Co-authored-by: t-hamano <wildworks@git.wordpress.org>

test/e2e/specs/editor/plugins/wp-editor-meta-box.spec.js

@@ -27,7 +27,7 @@ test.describe( 'WP Editor Meta Boxes', () => {
 		// Switch tinymce to Text mode, first waiting for it to initialize
 		// because otherwise it will flip back to Visual mode once initialized.
 		await page.locator( '#test_tinymce_id_ifr' ).waitFor();
-		await page.locator( 'role=button[name="Text"i]' ).click();
+		await page.locator( 'role=button[name="Code"i]' ).click();
 
 		// Type something in the tinymce Text mode textarea.
 		const metaBoxField = page.locator( '#test_tinymce_id' );