[roll third_party/pigweed] pw_log: Optional logger for pw_cli.log.install

Allow install to take an optional logger. This let's downstream
projects to easily get the Pigweed log format for their own logs
separate from the Python root logger.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/53720

third_party/pigweed Rolled-Commits: 19929fafcc61fe3..eba7dd6adf850cd
Roller-URL: https://ci.chromium.org/b/8841227957340084976
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8841227957340084976
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If9696324c1165366e547187798c14825a07eeee8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/53686
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 19929fa..eba7dd6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 19929fafcc61fe3aff27b7c154e8c93fed646a39
+Subproject commit eba7dd6adf850cdf2e2e4edd6fef3653045ba041