Roll depot_tools git to v2.23.0 [bleeding edge/canary]

This picks up tracing v2 to better track git performance.

Bug: 1018953
Change-Id: I13616280b534ad80eb1904ef5012c42dadb45ca4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1884704
Auto-Submit: Erik Chen <erikchen@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>

bootstrap/manifest_bleeding_edge.txt

@@ -24,4 +24,4 @@ infra/python/cpython/${platform} version:2.7.15.chromium14
 infra/python/cpython3/${os}-${arch=amd64} version:3.8.0b1.chromium.1
 
 @Subdir git
-infra/git/${os}-${arch} version:2.21.0.chromium16
+infra/git/${os}-${arch} version:2.23.0.chromium16