roll: third_party/pigweed ebeb08b..a63c499 (3 commits)

a63c499:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/278432 pw_protobuf_compiler: Make --compile-dir optional
bfff1ff:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/278493 pw_ide: Use CIPD clangd for non-Bazel targets
2d7b882:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/278877 pw_bluetooth_sapphire: Fix gtest macro sign error

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: ebeb08bc01890e..a63c4996e41059
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8719303221585284321
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ifd072adf4cae1fe299f710a51f81707f4247b3fc
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/279592
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.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 ebeb08b..a63c499 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit ebeb08bc01890e2dadeb7dbaed43e733e7a075f0
+Subproject commit a63c4996e41059465ded4aa888f3f90d2a6b3b54