v6.1.0

What's Changed

• Update sharp to 0.35.1, libvips to 8.18.3, libheif to 1.23.0, libde265 to 1.0.18, libaom to 3.14.1 by @faradaytrs in #43
• Build flow updated for sharp 0.35 (explicit build step against global libvips, no more prebuilt binaries in the layer)
• Reduced build parallelism to avoid OOM on CodeBuild medium instances by @faradaytrs
• Build hardening: SHA256 verification for all source tarballs, pinned node-gyp/node-addon-api
• CodeBuild image updated to aws/codebuild/amazonlinux-x86_64-standard:6.0

Full Changelog: v6.0.0...v6.1.0