Merge bitcoin#29620: ci: add print of powershell version to win64 job

115c283 ci: add print of powershell version to win64 job (Max Edwards)

Pull request description:

  Extraction of just printing powershell version from closed PR: bitcoin#29581

  See bitcoin#29581 (comment) for the cause of a CI failure which was a powershell update.

  This PR will make it easier to notice in the future that PS has changed.

ACKs for top commit:
  hebasto:
    ACK 115c283. We still use PowerShell in some steps of the "Win64 native" CI job.

Tree-SHA512: 4c7ba9df4f0a98491120326f05e877a995f43a387fe9bbd193549b32f5a4488f85f83e472c9277db457110a7deda04f08832fe6e8129aff4b0b7278be23d4e35

.github/workflows/ci.yml

@@ -160,6 +160,7 @@ jobs:
           $env:CI_QT_URL | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_url"
           $env:CI_QT_CONF | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_conf"
           py -3 --version
+          Write-Host "PowerShell version $($PSVersionTable.PSVersion.ToString())"
 
       - name: Restore static Qt cache
         id: static-qt-cache