reqwest 0.13 defaults to rustls -> aws-lc-rs which requires cmake/nasm
in minimal build environments (AUR chroot). Switch all direct reqwest
users to native-tls (system OpenSSL) to fix clean chroot build failures
reported by users.
Affected crates: owlry-core, owlry-lua, owlry-rune
PKGBUILD: add openssl to depends for all three runtime packages
Also add scripts/aur-local-test for clean chroot testing workflow
The aur/ directory was entirely gitignored, preventing PKGBUILD and
.SRCINFO files from being tracked. Fix .gitignore to only ignore
build artifacts and nested .git dirs, matching the owlry-plugins
repo convention.
