CodeQL security scanning is failing bootstrap #13959
Description
CodeQL security scanning, introduced in #13894, is failing bootstrap.
Logs show the following:
dotnet-install: Downloading link: https://dotnetcli.azureedge.net/dotnet/Sdk/5.0.100-rc.2.20479.15/dotnet-sdk-5.0.100-rc.2.20479.15-linux-x64.tar.gz
curl: (56) GnuTLS recv error (-54): Error in the pull function.
dotnet-install: Cannot download: https://dotnetcli.azureedge.net/dotnet/Sdk/5.0.100-rc.2.20479.15/dotnet-sdk-5.0.100-rc.2.20479.15-linux-x64.tar.gz
dotnet-install: Downloading legacy link: https://dotnetcli.azureedge.net/dotnet/Sdk/5.0.100-rc.2.20479.15/dotnet-dev-ubuntu.16.04-x64.5.0.100-rc.2.20479.15.tar.gz
curl: (22) The requested URL returned error: 404 Not Found
dotnet-install: Cannot download: https://dotnetcli.azureedge.net/dotnet/Sdk/5.0.100-rc.2.20479.15/dotnet-dev-ubuntu.16.04-x64.5.0.100-rc.2.20479.15.tar.gz
dotnet_install: Error: Could not find/download: `.NET Core SDK` with version = 5.0.100-rc.2.20479.15
dotnet_install: Error: Refer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support