[test] Skip slow tests

TBR=gsathya@chromium.org
NOTRY=true

Change-Id: I6ddb04fe4aec3596bfc70170310745924909de52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1857222Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64268}

test/benchmarks/benchmarks.status

@@ -64,6 +64,12 @@
   'octane/zlib': [SKIP],
 }],
 
+['variant == stress_incremental_marking', {
+  # Too slow for stress_incremental_marking.
+  'octane/box2d': [SKIP],
+  'octane/typescript': [SKIP],
+}],
+
 ['gc_fuzzer', {
   # Too slow for gc fuzzing.
   'octane/earley-boyer' : [PASS, SLOW, ['mode == debug', SKIP]],