roll: pigweed, pw_toolchain: pw_grpc: Fix shadowed variable warning

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/225931
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: d89b13448d1e07d..54b1551fabecd43
Roller-URL: https://ci.chromium.org/b/8741490208459682209
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ic596f629c2461b63a8a599a3ae498ca6f86a9646
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/226032
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
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WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 6e94693..d89f73c 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -84,8 +84,8 @@
     name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-07-24.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8741490614276239569.
-    commit = "d89b13448d1e07d4d6cd3160ea706631e178300a",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8741490208459682209.
+    commit = "54b1551fabecd4312f46808cec488db35f81732e",
     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 2024-07-24.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8741490614276239569.
-    commit = "d89b13448d1e07d4d6cd3160ea706631e178300a",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8741490208459682209.
+    commit = "54b1551fabecd4312f46808cec488db35f81732e",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed.git",
     strip_prefix = "pw_toolchain_bazel",
 )