roll: gn

From: git_revision:d7cf6238e07f87b51118f9823a1ec024c1f1932b
To: git_revision:dfcbc6fed0a8352696f92d67ccad54048ad182b3

CQ-Do-Not-Cancel-Tryjobs: true
Roller-URL: https://ci.chromium.org/b/8855344501767820384
Cq-Cl-Tag: roller-builder:gn-roller
Cq-Cl-Tag: roller-bid:8855344501767820384
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I02798ba81d885709d1020fe4d16c239c0e4596da
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/32803
Reviewed-by: Pigweed Roller <pigweed-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json b/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
index 5858957..22ae350 100644
--- a/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
+++ b/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json
@@ -2,7 +2,7 @@
   {
     "path": "gn/gn/${os}-${arch=amd64,arm64}",
     "tags": [
-      "git_revision:d7cf6238e07f87b51118f9823a1ec024c1f1932b"
+      "git_revision:dfcbc6fed0a8352696f92d67ccad54048ad182b3"
     ]
   },
   {