Roll libc++ from 492ff432ef34 to 61c68567ca97 (5 revisions)

492ff432ef..61c68567ca

2025-02-11 koraq@xs4all.nl [libc++] Fixes building with Python 3.8.
2025-02-11 ldionne.2@gmail.com [libc++][NFC] Run the container tests through clang-format (#126499)
2025-02-11 de34@live.cn [libc++][test] Fixes for `hash<Emplaceable>` and value discarding (#126566)
2025-02-10 huberjn@outlook.com [NVPTX] Make ctor/dtor lowering always enabled in NVPTX (#126544)
2025-02-10 ldionne.2@gmail.com [libc++] Extract destroy algorithms into separate headers (#126449)

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 hans@chromium.org,thakis@chromium.org 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: hans@chromium.org,thakis@chromium.org
Change-Id: Ia42746fe1f9d9ac6073a3b26318c47ff51609fc6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6254663
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1418918}

DEPS

@@ -496,7 +496,7 @@ vars = {
 
   # If you change this, also update the libc++ revision in
   # //buildtools/deps_revisions.gni.
-  'libcxx_revision':       '492ff432ef34d75d5c9f2bfc4b5b70944c208c16',
+  'libcxx_revision':       '61c68567ca977656440757c3effe124057509e8f',
 
   # GN CIPD package version.
   'gn_version': 'git_revision:ed1abc107815210dc66ec439542bee2f6cbabc00',

buildtools/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 = "492ff432ef34d75d5c9f2bfc4b5b70944c208c16"
+  libcxx_revision = "61c68567ca977656440757c3effe124057509e8f"
 }