[SuperEditor][Android] Fix image caret failing golden tests

[angelosilvestre]

We have two golden tests that are passing locally, but failing on the CI. Regenerating these goldens doesn't produce different golden files. Additionally, using our tools to compare goldens with a pixel tolerance seems to cause the debugNeedsPaint != true assertion failure in these tests.

super_editor/super_editor/test_goldens/editor/supereditor_caret_test.dart

Lines 37 to 53 in 5481c4e

	testGoldensOnAndroid(
	'shows caret at right side of an image',
	(tester) async {
	await _pumpCaretTestApp(tester);
	// Tap close to the right edge of the editor to place the caret
	// downstream on the image.
	await tester.tapAt(
	tester.getTopRight(find.byType(SuperEditor)) + const Offset(-20, 20),
	);
	await tester.pumpAndSettle();
	await screenMatchesGolden(tester, 'super-editor-image-caret-downstream-android');
	},
	// TODO: find out why this test fails on CI only.
	skip: true,
	);

super_editor/super_editor/test_goldens/editor/supereditor_caret_test.dart

Lines 81 to 98 in 5481c4e

	testGoldensOnAndroid(
	'shows caret at left side of an image',
	(tester) async {
	await _pumpCaretTestApp(tester);
	// Tap close to the left edge of the editor to place the caret upstream
	// on the image.
	await tester.tapAt(
	tester.getTopLeft(find.byType(SuperEditor)) + const Offset(20, 20),
	);
	await tester.pump();
	await screenMatchesGolden(tester, 'super-editor-image-caret-upstream-android');
	},
	// TODO: find out why this test fails on CI only.
	skip: true,
	);
	});

Those tests were skipped to unblock a PR. Find out why this is happening and re-enable these tests.