[roll third_party/pigweed] pw_presubmit: Allow multiple uploading of coverage

Allow uploading absolute coverage data to multiple places. This will
help when the repository in question is in codesearch in multiple
places.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/187471

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 6d2b92a0ec93430..2bc58521173f81e
Roller-URL: https://ci.chromium.org/b/8759091403142701377
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I94f54970bc081f0836fbe384025f7a32374dbb75
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/187658
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 6d2b92a..2bc5852 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 6d2b92a0ec934308801f2fff02e8662e4399b611
+Subproject commit 2bc58521173f81ee93a64d8a91d4bad3ffdff249