roll: buildifier

From: version:2@v6.1.2
To: version:2@v6.3.2
Roller-URL: https://ci.chromium.org/b/8772167108356912449
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1034316a37e3049cf526e7cff29cf574051997f4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/167343
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/pw_env_setup/py/pw_env_setup/cipd_setup/buildifier.json b/pw_env_setup/py/pw_env_setup/cipd_setup/buildifier.json
index dcd09de..69b85d5 100644
--- a/pw_env_setup/py/pw_env_setup/cipd_setup/buildifier.json
+++ b/pw_env_setup/py/pw_env_setup/cipd_setup/buildifier.json
@@ -10,7 +10,7 @@
         "windows-amd64"
       ],
       "tags": [
-        "version:2@v6.1.2"
+        "version:2@v6.3.2"
       ]
     }
   ]