Antigravity 2.0 v2.8.1

Automated Antigravity 2.0 release created after merge/push to main.
Package version: 2.8.1.

What's Changed

• Update Antigravity 2.0 to 2.8.1 by @github-actions[bot] in #41

Full Changelog: antigravity-ide-v2.5.5...antigravity-2-0-v2.8.1