Enable mandatory signature verification in Linux

[sandy081]

Enable signature verification blocking in Linux

[sandy081]

@furai is seeing following after enabling mandatory signature verification in Linux

Yeah, I'm getting this right now on latest insiders for 2 currently outdated extensions from Microsoft:

• GitHub.copilot-chat
• ms-python.python

Version: 1.98.0-insider
Commit: edd39c48ec3c81b5f8c6ddf1893a95acf8662187
Date: 2025-02-06T05:04:30.184Z
Electron: 32.2.7
ElectronBuildId: 10660205
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: Linux x64 6.13.1-arch1-1

@furai Can you please try to reproduce the issue by following these steps:

• Enable Log Level to Trace F1 > Developer: Set Log Level > Trace
• Reproduce the Issue
• Share the log - F1 > Open View... > Shared

Can you please let us know how you installed VS Code Insiders on your machine?