[Android][v8] V8 14.3.92 compilation fails with missing libc++ forward headers (__fwd/byte.h)

[何浩]

I'm using GitHub Actions to compile Android V8 static libraries (arm/arm64/x64) on Ubuntu, but the compilation keeps failing.

Error Log

```

While building module 'std_core':

  In file included from <module-includes>:1:

  gen/third_party/libc++/src/include/__cstddef/byte.h:13:10: fatal error: '__fwd/byte.h' file not found

     13 | #include <__fwd/byte.h>

        |          ^~~~~~~~~~~~~~

  1 error generated.

  [1150/4208] CXX clang_x64_v8_arm64/obj/buildtools/third_party/libc++abi/libc++abi/stdlib_exception.o

  [1151/4208] CXX clang_x64_v8_arm64/obj/buildtools/third_party/libc++abi/libc++abi/fallback_malloc.o

```

GN Configuration:

```

target_os="android"

target_cpu="arm64"

v8_target_cpu="arm64"

clang_use_chrome_plugins=false

chrome_pgo_phase=false

dcheck_always_on=false

enable_rust=false

is_cfi=false

is_asan=false

is_clang=true

is_component_build=false

is_debug=false

strip_debug_info=true

symbol_level=0

treat_warnings_as_errors=false

use_custom_libcxx=false

use_rtti=false

use_custom_libunwind=false

use_ml_inliner=false

v8_deprecation_warnings=false

v8_enable_builtins_optimization=false

v8_enable_gdbjit=false

v8_enable_i18n_support=false

v8_enable_pointer_compression=false

v8_enable_sandbox=false

v8_enable_snapshot_compression=false

v8_enable_temporal_support=false

v8_enable_test_features=false

v8_enable_fuzztest=false

v8_enable_webassembly=true

v8_imminent_deprecation_warnings=false

v8_monolithic=true

v8_use_external_startup_data=false

```

v8 version:  14.3.92/14.3.127

- If I set `use_custom_libcxx=true`, it compiles successfully, but crashes when running on Android devices

- I tried setting `android_ndk_root="${NDK_ROOT}"` and `clang_base_path="${NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64"`, but the compilation still fails

- My GitHub Actions repository URL: https://github.com/haroel/v8-build

Could you please help me identify what is configured incorrectly?