roll: pw_toolchain, pw_toolchain: pw_build_info: Add git_build_info.h header for embedding git info

Provides an autogenerated header derived from bazel workspace status
that lets you embed the git commit and tree status into an executable.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/213854
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
pw_toolchain, pw_toolchain Rolled-Commits: 2c8b44aa6836dd3..67b6c47a019a9ca
Roller-URL: https://ci.chromium.org/b/8744746380791076785
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ic4455df57bd09b15767aa76410e86a63338f8539
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/216822
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>
diff --git a/WORKSPACE b/WORKSPACE
index e7faff8..c064e96 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -84,8 +84,8 @@
     name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-06-19.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8744746769573194801.
-    commit = "2c8b44aa6836dd34af9ec44b822a23f913aea553",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8744746380791076785.
+    commit = "67b6c47a019a9cad9744d04b95eb4e56030092f3",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed.git",
 )
 
@@ -93,8 +93,8 @@
     name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-06-19.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8744746769573194801.
-    commit = "2c8b44aa6836dd34af9ec44b822a23f913aea553",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8744746380791076785.
+    commit = "67b6c47a019a9cad9744d04b95eb4e56030092f3",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed.git",
     strip_prefix = "pw_toolchain_bazel",
 )