build: ensure that mksnapshot for Apple Silicon has all of the needed files for snapshot generation (#29338)

* build: include mksnapshot args in arm64 mksnapshot.zip

* get gen/v8/embedded.S from proper location

.circleci/config.yml

@@ -525,6 +525,7 @@ step-electron-build: &step-electron-build
         ninja -C out/Default electron:electron_mksnapshot_zip -j $NUMBER_OF_NINJA_PROCESSES
         ninja -C out/Default tools/v8_context_snapshot -j $NUMBER_OF_NINJA_PROCESSES
         gn desc out/Default v8:run_mksnapshot_default args > out/Default/mksnapshot_args
+        (cd out/Default; zip mksnapshot.zip mksnapshot_args clang_x64_v8_arm64/gen/v8/embedded.S)
         rm -rf out/Default/clang_x64_v8_arm64/gen
         rm -rf out/Default/clang_x64_v8_arm64/obj
         rm -rf out/Default/clang_x64/obj