Roll libc++ from 917609c669e4 to 9d0cba76be73 (1 revision)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/917609c669e4..9d0cba76be73

2025-04-28 [email protected] [libc++][CI] Improves updating Docker image. (#134497)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/libcxx-chromium
Please CC [email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: [email protected],[email protected]
Change-Id: Id440ef33cd936ed6755f7f170df032a0a3a0dccf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6495773
Bot-Commit: chromium-autoroll <[email protected]>
Commit-Queue: chromium-autoroll <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1452808}
NOKEYCHECK=True
GitOrigin-RevId: ed43cc25afde55fe08ff1230fa7e16c51d8d5e69

Author: chromium-autoroll

deps_revisions.gni

@@ -5,5 +5,5 @@
 declare_args() {
   # Used to cause full rebuilds on libc++ rolls. This should be kept in sync
   # with the libcxx_revision var in //DEPS.
-  libcxx_revision = "917609c669e43edc850eeb192a342434a54e1dfd"
+  libcxx_revision = "9d0cba76be7399399d3a499ff3a52c264db3b104"
 }