[roll third_party/pigweed] python: Upgrade mypy to 1.5.0

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/166272

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 9595ee33170d321..2c93ab299c560b5
Roller-URL: https://ci.chromium.org/b/8772672148922123841
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8b299b3306c9e834f49feb639fd2f7cd2af589c4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/166350
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 9595ee3..2c93ab2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 9595ee33170d32145979dd91663b41dabcf72ad9
+Subproject commit 2c93ab299c560b58d1860c2b48261e317a4f8156