Run release job on preview VS

Move (only) the `Windows Full Release (no bootstrap)` leg to the
`windows.vs2022preview.amd64.open` pool, which has Visual Studio 17.6 on
it already.

This will unblock #8674 by avoiding
dotnet/sdk#32691; the `MSBuild.exe.config`
binding redirects in the 17.6 VS will keep the current versions working
for the moment.

.vsts-dotnet-ci.yml

@@ -100,7 +100,12 @@ jobs:
 - job: FullReleaseOnWindows
   displayName: "Windows Full Release (no bootstrap)"
   pool:
-    vmImage: 'windows-2022'
+    ${{ if eq(variables['System.TeamProject'], 'public') }}:
+      name: NetCore-Public
+      demands: ImageOverride -equals windows.vs2022preview.amd64.open
+    ${{ if ne(variables['System.TeamProject'], 'public') }}:
+      name: VSEngSS-MicroBuild2022-1ES
+      demands: agent.os -equals Windows_NT
   steps:
   - task: BatchScript@1
     displayName: cibuild.cmd