[third_party/pigweed] Roll 2 commits

1548f2406f69d61 bazel: Upgrade nanopb version
8a42e20a49f2810 bazel: Use Python 3.11

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 6ec8e692dc12eac..1548f2406f69d61
Roller-URL: https://ci.chromium.org/b/8764493205184595393
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id78ce01fed7597897520449622367b5ccd9c6a4f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/180778
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 6ec8e69..1548f24 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 6ec8e692dc12eac625f9d1f12ecd57b1a2e5cbc0
+Subproject commit 1548f2406f69d61c8f90e847eb6ba0d1d178b330