ci(workspace): stabilize standalone package hosts

Tools/RepositoryMigration/Initialize-ShrinkSdkPackageRepositories.ps1

@@ -240,6 +240,11 @@ jobs:
         shell: bash
         run: |
           set -eu
+          machine_id_file="/root/.local/share/unity3d/Unity/.machine-id"
+          if test -s "$machine_id_file"; then
+            cat "$machine_id_file" > /etc/machine-id
+            echo "Unity machine identity restored"
+          fi
           unity_bin="$(command -v unity-editor || command -v unity || command -v Unity || true)"
           test -n "$unity_bin"
           "$unity_bin" \
@@ -265,6 +270,7 @@ jobs:
         )
         dependencies = [ordered]@{
             'com.unity.test-framework' = '1.1.33'
+            'com.cysharp.unitask' = 'https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask#7c0f199fe0d3fc528024488ccd671e6c7b27745b'
             $PackageName = 'file:../../..'
         }
     }