roll: ninja

From git_revision:b23e3858e5eabaad1b7f7a1fa1c2e5934b8ff7b4
To git_revision:ad51f28a1094c1a0eb0c2623e5cbebc135f855f1

Roller-URL: https://ci.chromium.org/b/8734867651701496545
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I330821079b76bc82794b64aa226d5e22505f1952
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/240374
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json

@@ -24,7 +24,7 @@
         "windows-amd64"
       ],
       "tags": [
-        "git_revision:b23e3858e5eabaad1b7f7a1fa1c2e5934b8ff7b4"
+        "git_revision:ad51f28a1094c1a0eb0c2623e5cbebc135f855f1"
       ]
     },
     {