[roll third_party/pigweed] .bazelversion: Add file

Original-Bug: b/336617748
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/205918

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 6f9099b2b688bf6..c7f27e2026d681c
Roller-URL: https://ci.chromium.org/b/8749754314565652481
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I18a136f7c150f2239e8c6277f2852a6cb3711552
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/206210
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 6f9099b..c7f27e2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 6f9099b2b688bf63e9480f58b7778ed1d024eb31
+Subproject commit c7f27e2026d681cda120d78c3e5078d1c3a85d17