[third_party/pigweed] Roll 2 commits

7e07cfabb7a8768 pw_env_setup: Remove f-strings from github_visitor
770fffc2d741fc5 pw_transfer: End active transfers when RPC stream

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 3a93dbec943d0aa..7e07cfabb7a8768
Roller-URL: https://ci.chromium.org/b/8747725989488925425
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia4c2f1ec836d9bb591228ea1615e75ebe95af569
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/210291
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 3a93dbe..7e07cfa 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 3a93dbec943d0aa9bb20601dbcf618c956b6dbb4
+Subproject commit 7e07cfabb7a8768c1676b138de7cc23996a3c924