roll: ninja

From: version:2@1.11.1.chromium.4
To: version:2@1.11.1.chromium.6

CQ-Do-Not-Cancel-Tryjobs: true
Build-Errors: continue
Roller-URL: https://ci.chromium.org/b/8796382989128849089
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If55808b5a2d961b247e175af159764648d46c1e2
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/121195
Bot-Commit: 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 ac4e66d..dc641ff 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
@@ -24,7 +24,7 @@
         "windows-amd64"
       ],
       "tags": [
-        "version:2@1.11.1.chromium.4"
+        "version:2@1.11.1.chromium.6"
       ]
     },
     {