ci: Fix Scoop installation

Author: ubolonton

.github/script/setup.ps1

@@ -1,4 +1,12 @@
-iex (New-Object net.webclient).downloadstring('https://get.scoop.sh')
+# iex (New-Object net.webclient).downloadstring('https://get.scoop.sh')
+
+# XXX: https://github.com/ScoopInstaller/Scoop/issues/4783#issuecomment-1061446902
+# iwr -useb https://raw.githubusercontent.com/ScoopInstaller/Install/7bcdf996f0f4597ef69f4c48c219024a9512113c/install.ps1 | iex
+
+# XXX: https://github.com/ScoopInstaller/Install#for-admin
+iwr -useb https://get.scoop.sh -outfile 'install.ps1'
+.\install.ps1 -RunAsAdmin
+
 Join-Path (Resolve-Path ~).Path "scoop\shims" >> $env:GITHUB_PATH
 scoop bucket add extras
 scoop bucket add nonportable