package:hooks_runner v1.6.2

• Provide the runner's logger to protocol extensions before any other method is
  invoked, so they can emit validation diagnostics.
• Require dartExecutable to be an absolute path, and on Windows to include a
  file extension
• Report a format error instead of throwing a TypeError when a hook's cached
  output.json contains valid JSON that is not an object.
• Bump package:code_assets dependency to ^2.0.0.
• Add PATHEXT to the environment variables allowlist.
• Add prefixes RUSTUP_ and CARGO_ to the environment variables allowlist.
• Store size and last modification time in dependency hashes to skip content
  hashing when unchanged.