[roll third_party/pigweed] pw_unit_test: Use inclusive language

Original-Bug: 386
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/46582

third_party/pigweed Rolled-Commits: 81244f09a162c6f..2f6662c5c63a82d
Roller-URL: https://ci.chromium.org/b/8846550931714199728
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8846550931714199728
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I920d3e41467d9e1b696456779e70b9128d8c3791
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/46642
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 81244f0..2f6662c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 81244f09a162c6f625d31a6fab039f5d9fa46828
+Subproject commit 2f6662c5c63a82d41cc3633804b4539c44127a3e