[roll third_party/pigweed] bazel: Update to Bazel 7.0.0 release version

This is newer than the latest 7.0 pre-release, and contains fixes for
some bugs.

Eventually we'll move to the Bazel 8 pre-release, but probably only once
it contains features we want to use.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/186935

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: b768cc015332fa3..5affa0741d71b17
Roller-URL: https://ci.chromium.org/b/8759164048953799777
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I50b32629900d0e2807e0e179ddd143f0e06806cb
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/187533
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 b768cc0..5affa07 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b768cc015332fa3f5c50e19aee256de9e0e24407
+Subproject commit 5affa0741d71b172fae4a61862e75e26860d31d7