[nnnnoel]

Summary

• Build hermesc on both x86-64 and native Linux ARM64 runners in the npm release workflow.
• Include the ARM64 binary at hermesc/linuxarm64-bin/hermesc in hermes-compiler, while retaining the existing linux64-bin binary and path.
• Fail the release when the ARM64 artifact is missing, and verify that both Linux binaries appear in the npm package.

Fixes #2194.

Validation

• Built the hermesc CMake target in a native Linux ARM64 Ubuntu 24.04 container using the release build flags. The binary ran --version (HBC bytecode version 99) and produced a nonempty .hbc file from a sample JavaScript input. The final optional file inspection in that container was unavailable because the minimal image lacks file(1); compilation and bytecode generation completed before that command.
• Confirmed npm pack --dry-run --json includes both Linux compiler paths in a staging package.
• Parsed both changed workflow YAML files, ran node --check on the packaging script, and ran git diff --check.

This supplies the ARM64 host binary. Consumers that hard-code linux64-bin will still need to select the new path when running on Linux ARM64.