Roll skia-recipes to pick up shadow_utils blacklist.

Change-Id: I11dd76fcb687e46c708feb725aef6f1102d74d0a
Reviewed-on: https://skia-review.googlesource.com/7881
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

infra/bots/recipes/swarm_test.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86-Debug.json

@@ -378,6 +378,10 @@
       "serialize-8888",
       "gm",
       "_",
+      "shadow_utils",
+      "serialize-8888",
+      "gm",
+      "_",
       "bleed_alpha_image",
       "serialize-8888",
       "gm",

infra/config/recipes.cfg

@@ -23,5 +23,5 @@ deps {
   project_id: "skia-recipes"
   url: "https://skia.googlesource.com/skia-recipes.git"
   branch: "master"
-  revision: "46b1e5e4ef2bdd60eebbbb145607af1c41507d9f"
+  revision: "6cb3342d908260b2b735d38cdb3e7147ed1a3c3b"
 }