[test] Disable failing MSVC test

Change-Id: I67b62ae71700fab3755f83634fa571b1cea3af4e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308890
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78190}

test/webkit/webkit.status

@@ -45,9 +45,10 @@
   'dfg-double-vote-fuzz': [PASS, SLOW],
   'dfg-int-overflow-in-loop': [PASS, SLOW],
 }],  # ALWAYS
-['system == windows', {
+['system == windows and not is_clang', {
   # Exceeds call stack on windows after MSVS2017 switch.
   'fast/js/excessive-comma-usage': [SKIP],
+  'run-json-stringify': [SKIP],
 }],  # system == windows
 ['mode == debug', {
   # Too slow in debug mode.