[Impeller] Turned off the TextRotated golden test again (#41399)

We previously turned this test to `ignore` to see if we could get it to stabilize by accepting the variants and it doesn't seem to have worked.  I'm going to turn it off again.

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

Author: gaaclarke

impeller/golden_tests/golden_playground_test_mac.cc

@@ -23,6 +23,9 @@ static const std::vector<std::string> kSkipTests = {
     "impeller_Play_AiksTest_CoverageOriginShouldBeAccountedForInSubpasses_"
     "Metal",
     "impeller_Play_AiksTest_SceneColorSource_Metal",
+    // TextRotated is flakey and we can't seem to get it to stabilize on Skia
+    // Gold.
+    "impeller_Play_AiksTest_TextRotated_Metal",
 };
 
 namespace {