[third_party/pigweed] Roll 6 commits

49808df458b1fa1 third_party: Roll FuzzTest and Abseil
853a9814ac52e9d pw_kvs: Follow new module docs guidelines
02ffd1ad2aa82a9 docs: Fix incorrect module name in changelog
1b6855609edc8c5 pw_transfer: Change class to parser
28c114d7b228a56 pw_assert: Apply formatting changes
31fee27f25a2332 pw_web: NPM version bump to 0.0.14

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: a4514bdc2d5b5dd..49808df458b1fa1
Roller-URL: https://ci.chromium.org/b/8755442444338577665
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ib86bdf9cf8def1553b41ff7a6da0e522db0fe549
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/193537
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 a4514bd..49808df 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a4514bdc2d5b5dd5cd8020cf37f0dbfa68243be6
+Subproject commit 49808df458b1fa19904aaf69978f0230140ae026