Update build.yml

PATCH: fix libatomic.so.1 not found

PATCH: Remove -split-threshold-for-reg-with-hint=0

Use python 3.8 for windows

PATCH: static_assert(false) in constexpr is not supported.

PATCH: Add use_custom_libunwind=false for Android build, fix unwind l…

…inking error

PATCH: Re-add Isolate::VisitHandlesWithClassIds since cocos needs it.

It was removed at v8/v8@4cf204d

PATCH: add generate-android-ndk-cache.yml