Snippets for libphonenumber 9.0.38 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/63ykd6shc0pvq1x8j27kj11jvlrv97mx-libphonenumber-9.0.38.drv.

• /build/source/cpp/src/phonenumbers/geocoding/phonenumber_offline_geocoder.cc:80:25: warning: 'absl::lts_20260107::MutexLock::MutexLock(absl::lts_20260107::Mutex*)' is deprecated: Use the constructor that takes a reference instead [-Wdeprecated-declarations]
     80 |   absl::MutexLock l(&mu_);
        |                         ^
  

• /build/source/cpp/src/phonenumbers/geocoding/phonenumber_offline_geocoder.cc:198:25: warning: 'absl::lts_20260107::MutexLock::MutexLock(absl::lts_20260107::Mutex*)' is deprecated: Use the constructor that takes a reference instead [-Wdeprecated-declarations]
    198 |   absl::MutexLock l(&mu_);
        |                         ^