Local Docker image was still baked at 2.0.4 while test and prod had
self-upgraded to 2.0.7. Bump the Dockerfile release zip to 2.0.7 and
align the GRAV_VERSION pins so a fresh remote-install lands on 2.0.7
directly instead of installing an older base and needing a self-upgrade.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Np4cMQLF77i664CAQXySzU