v4.3.0

v4.3.0

Fixed

• Deploy no longer dies deep in Ansible when an Isaac Sim/Lab/Arena version is not a
  real git ref. The CLI now verifies --isaacsim/--isaaclab/--isaaclab-arena refs
  up front (git ls-remote) and fails fast with a clear message. (NVBug 6380502:
  v6.0.1.0 is not a tag; the release tag is v6.0.1.)

Added

• "latest" version selection, now the default for --isaacsim/--isaaclab/--isaaclab-arena:
  auto-detects the newest release across the repo's tags and release/* branches; the
  detected version is printed, and --debug traces the detection.
• isaac-automator agent skill (source for the NVIDIA skills catalog).