Extension causes high cpu load

[bnavee]

• Issue Type: Performance
• Extension Name: vscode-github
• Extension Version: 0.30.7
• OS Version: Windows_NT x64 10.0.19045
• VS Code version: 1.70.1

⚠️ Make sure to attach this file from your home-directory:
⚠️file:///c%3A/Users/Naveen/AppData/Local/Temp/KnisterPeter.vscode-github-unresponsive.cpuprofile.txt

Find more details here: https://github.com/microsoft/vscode/wiki/Explain-extension-causes-high-cpu-load

[github-actions]

Duplicate of #443