v0.2.0 of dart_audit

Security vulnerability scanner for Dart and Flutter projects. Checks all dependencies against the OSV.dev database. Changelog excerpt: ### Added - inspectsubcommand— statically analyses a pub.dev package's Dart source before it enters the project, enabling supply-chain attack detection. - Downloads the package .tar.gzarchive from pub.devusing the archivepackage; extracts only .dartfiles to a temporary directory (always cleaned up). - Regex scanner— 14 rules across 7 categories: hard-coded URLs to unknown hosts, raw TCP sockets, Process.run/ shell injection, sensitive file-system paths, obfuscation te[...]