fix: work around GCC 12 false positive when building watcher on i386
GCC 12 on Debian Bookworm i386 emits a spurious -Werror=use-after-free
in libstdc++ basic_string.h when compiling e-dant/watcher, causing
Docker builds to fail.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>