[roll third_party/pigweed] pw_cli: Allow banner to be suppressed

Do not print the banner if either the `PW_ENVSETUP_QUIET` or
`PW_ENVSETUP_NO_BANNER` environment variable is set.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/184970

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: b67f836deb188a8..2ebb7e812dbed38
Roller-URL: https://ci.chromium.org/b/8761781905075237041
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I57bc5cf8ed173f945ae5bca8f179add6e2d94760
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/184904
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 b67f836..2ebb7e8 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b67f836deb188a87c906a08335da46254bbc9377
+Subproject commit 2ebb7e812dbed381109ac216cff853793b76c79f