Failing to upgrading antigravity extensions after v2.0 release

## Checklist - [X] I have searched the issue tracker for relevant or duplicate issues. ## Erroneous Behavior Failing to upgrading antigravity extensions after v2.0 release. ## Expected Behavior For them to update. ## Steps to reproduce Run the antigravity updater step. ## Possible Cause (Optional) Google reworked the entire "ide", that's the main culprit here. ``` Antigravity extensions failed: 0: The output of `antigravity --version` changed: Invalid version. This is not your fault, this is an issue in Topgrade. Please open an issue at: https://github.com/topgrade-rs/topgrade/issues/new?template=bug_report.md 1: unexpected character ':' after major version number ``` ## Problem persists without calling from topgrade - [x] Yes - [ ] No ## Ran through `Remote Execution` - [ ] Yes - [x] No If yes, does the issue still occur when you run topgrade directly in your remote host? - [ ] Yes - [ ] No ## Additional Details - Operation System/Version CachyOS Rolling - Installation Distro packages - Topgrade version 17.5.1 ## Verbose Output (`topgrade -v`) <details> <pre> ... <truncated> DEBUG Proc version output: Linux version 7.0.9-1-cachyos (linux-cachyos@cachyos) (clang version 22.1.5, LLD 22.1.5) #1 SMP PREEMPT_DYNAMIC Tue, 19 May 2026 02:22:52 +0000 DEBUG Detected "/usr/bin/antigravity" as "antigravity" DEBUG Executing command `/usr/bin/antigravity --version` ^CDEBUG version_output.stdout="11:27:04.516 › [IDE Wizard] Already shown, skipping.\n11:27:04.518 › Starting app (v2.0.1) with dynamic port…\n11:27:04.519 › \nSpawning: /opt/Antigravity/resources/bin/language_server --standalone --override_ide_name antigravity --subclient_type hub --override_ide_version 2.0.1 --override_user_agent_name antigravity --https_server_port 0 --csrf_token xxxx --app_data_dir antigravity --api_server_url https://generativelanguage.googleapis.com --cloud_code_endpoint https://daily-cloudcode-pa.googleapis.com --enable_sidecars\n\n11:27:04.921 › [Auto-Restart] Port changed! Reloading all windows with URL: https://127.0.0.1:36453/\n11:27:04.921 › \n============================================================\n11:27:04.922 › Local: https://127.0.0.1:36453/\n11:27:04.922 › LS Logs: /home/xxxx/.config/Antigravity/logs/language_server.log\n11:27:04.922 › Electron Logs: /home/xxxx/.config/Antigravity/logs/main.log\n11:27:04.922 › ============================================================\n\n11:27:14.950 › Shutting down language server…\n" DEBUG Step "Antigravity extensions" failed: 0: \x1b[91mThe output of `antigravity --version` changed: Invalid version. This is not your fault, this is an issue in Topgrade. Please open an issue at: https://github.com/topgrade-rs/topgrade/issues/new?template=bug_report.md\x1b[0m 1: \x1b[91munexpected character ':' after major version number\x1b[0m Location: \x1b[35msrc/steps/generic.rs\x1b[0m:\x1b[35m605\x1b[0m Antigravity extensions failed: 0: The output of `antigravity --version` changed: Invalid version. This is not your fault, this is an issue in Topgrade. Please open an issue at: https://github.com/topgrade-rs/topgrade/issues/new?template=bug_report.md 1: unexpected character ':' after major version number Location: src/steps/generic.rs:605 </pre> </details>