fix: make updater head interpolation PowerShell-safe

.github/workflows/patch-updater34-worker-head.yml

@@ -1,46 +0,0 @@
-name: Patch Updater 3.4 Worker Head Interpolation
-
-on:
-  push:
-    branches:
-      - feature/updater-3.4-lifecycle
-
-permissions:
-  contents: write
-
-concurrency:
-  group: patch-updater-34-worker-head
-  cancel-in-progress: false
-
-jobs:
-  patch:
-    if: ${{ github.actor != 'github-actions[bot]' }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          ref: feature/updater-3.4-lifecycle
-          fetch-depth: 0
-
-      - name: Mehrdeutige Head-Interpolation reparieren
-        shell: python
-        run: |
-          from pathlib import Path
-          path = Path('scripts/updater/Vendoo.Updater.Worker34.ps1')
-          text = path.read_text(encoding='utf-8-sig')
-          count = text.count('$head:')
-          if count != 2:
-              raise SystemExit(f'Erwartet wurden exakt 2 $head:-Stellen, gefunden: {count}')
-          text = text.replace('$head:', '${head}:')
-          path.write_text(text, encoding='utf-8-sig', newline='\n')
-
-      - name: Patch committen und temporären Workflow entfernen
-        shell: bash
-        run: |
-          set -euo pipefail
-          rm -f .github/workflows/patch-updater34-worker-head.yml
-          git config user.name 'vendoo-updater-build'
-          git config user.email 'vendoo-updater-build@users.noreply.github.com'
-          git add --all
-          git commit -m 'fix: make updater head interpolation PowerShell-safe'
-          git push origin HEAD:feature/updater-3.4-lifecycle

scripts/updater/Vendoo.Updater.Worker34.ps1

@@ -110,11 +110,11 @@ function Wait-RequiredGitHubChecks([string]$GhPath,[string]$PrUrl,$Session){
     $runsResult=Invoke-External $GhPath @('api',"repos/$Repository/actions/runs?head_sha=$head&per_page=100")-TimeoutSeconds 90 -AllowFailure -Label 'Workflow-Runs des finalen Heads lesen' -Quiet;$runs=@();if($runsResult.Code-eq0-and$runsResult.Output.Trim()){try{$runs=@(($runsResult.Output|ConvertFrom-Json).workflow_runs)}catch{$runs=@()}}
     $elapsed=[int]((Get-Date)-$headSince).TotalSeconds;$timedOut=(Get-Date)-ge$deadline;$classification=Invoke-Lifecycle 'classify-checks' ([ordered]@{checks=@($pr.statusCheckRollup);workflowRuns=$runs;elapsedSeconds=$elapsed;gracePeriodSeconds=90;timedOut=$timedOut})
     $matrix=@($classification.rows|ForEach-Object{"$($_.name): $($_.state) ($($_.conclusion)$($_.status))"})-join'; '
-    if($matrix-ne$lastMatrix-or((Get-Date)-$script:LastCheckLog).TotalSeconds-ge30){Write-Event 'INFO' "GitHub-Status für $head: $matrix";$lastMatrix=$matrix;$script:LastCheckLog=Get-Date}
+    if($matrix-ne$lastMatrix-or((Get-Date)-$script:LastCheckLog).TotalSeconds-ge30){Write-Event 'INFO' "GitHub-Status für ${head}: $matrix";$lastMatrix=$matrix;$script:LastCheckLog=Get-Date}
     if([string]$classification.state-eq'failed'){throw"Ein erforderlicher GitHub-Check ist fehlgeschlagen.`n$matrix"}
     if([string]$classification.state-eq'timeout'){throw"Zeitlimit beim Warten auf GitHub-Checks für finalen Head $head.`n$matrix"}
     if([string]$classification.state-eq'success'){$verify=(Invoke-External $GhPath @('pr','view',$PrUrl,'--repo',$Repository,'--json','headRefOid')-TimeoutSeconds 60 -Label 'Finalen PR-Head bestätigen' -Quiet).Output|ConvertFrom-Json;if([string]$verify.headRefOid-eq$head){return[pscustomobject]@{Merged=$false;HeadSha=$head;Pr=$pr}};Write-Event 'INFO' 'PR-Head änderte sich nach erfolgreicher Check-Auswertung; Auswertung wird für den neuen Head wiederholt.'}
-    Write-State 80 'GitHub-Checks' "Finaler Head $head: $($classification.reason).";Start-Sleep -Seconds 10
+    Write-State 80 'GitHub-Checks' "Finaler Head ${head}: $($classification.reason).";Start-Sleep -Seconds 10
   }
 }
 function Ensure-Deployment($Session){