[wasm] Temporarily disable stack-switching test

The stack-switching test is not expected to pass yet if a GC happens
in the runtime call or in the wasm call.

R=ahaas@chromium.org

Bug: v8:12191, v8:12344
Change-Id: Iba66be58c1abd2ffbb22bbd7d34f8df0246a2a92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3250900Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77594}

test/mjsunit/mjsunit.status

@@ -211,6 +211,9 @@
   'regress/regress-crbug-941743': [PASS, HEAVY],
   'regress/regress-crbug-1191886': [PASS, HEAVY],
   'wasm/externref-globals': [PASS, HEAVY],
+
+  # Enable when stack-switching supports GC.
+  'wasm/stack-switching': [SKIP],
 }],  # ALWAYS
 
 ##############################################################################