[CI pipeline] scripts/azure-pipelines/test-modified-ports.ps1 preinstall failed

[PhoebeHui]

https:/microsoft/vcpkg/blob/master/scripts/azure-pipelines/test-modified-ports.ps1#L101
It preinstall x86 tools for port protobuf, boost-build and sqlite3 in CI pipeline, the thread failed with WinHttpReceiveResponse() failed: 12152 when download powershell-core, that cause the 3 ports preinstall failed. however, it doesn't failed CI pipeline.

Related PR: #12612
CI pipeline: https://dev.azure.com/vcpkg/public/_build/results?buildId=41977&view=logs&jobId=440d5d2e-7b5f-5979-92a7-896b72338e4c&j=440d5d2e-7b5f-5979-92a7-896b72338e4c&t=223f498b-1424-5859-bc4f-c47d906dd0dc

Downloading nuget...
  https://dist.nuget.org/win-x86-commandline/v5.5.1/nuget.exe -> D:\downloads\22ea847d-nuget.exe
The following packages will be built and installed:
    boost-build[core]:x86-windows
  * boost-uninstall[core]:x86-windows
    protobuf[core]:x86-windows
    sqlite3[core]:x86-windows
Additional packages (*) will be modified to complete this operation.
Detecting compiler hash for triplet x86-windows...
A suitable version of powershell-core was not found (required v6.2.1). Downloading portable powershell-core v6.2.1...
Downloading powershell-core...
  https:/PowerShell/PowerShell/releases/download/v6.2.1/PowerShell-6.2.1-win-x86.zip -> D:\downloads\PowerShell-6.2.1-win-x86.zip
WinHttpReceiveResponse() failed: 12152
Creating failure logs output directory C:\agent\_work\1\a\failure-logs
Loading dependency information for 116 packages...
Detecting compiler hash for triplet arm-uwp...
A suitable version of powershell-core was not found (required v6.2.1). Downloading portable powershell-core v6.2.1...
Downloading powershell-core...
  https:/PowerShell/PowerShell/releases/download/v6.2.1/PowerShell-6.2.1-win-x86.zip -> D:\downloads\PowerShell-6.2.1-win-x86.zip
Extracting powershell-core...

[PhoebeHui]

Same issue encountered before #12918

[BillyONeal]

preinstall no longer exists.