fix(ci): remove explicit container block from prepare job to fix GITHUB_OUTPUT mapping bug in Gitea Actions

.gitea/workflows/deploy.yml

@@ -24,7 +24,7 @@ jobs:
   # ──────────────────────────────────────────────────────────────────────────────
   prepare:
     name: 🔍 Prepare
-    runs-on: docker
+    runs-on: ubuntu-latest
     outputs:
       target:           ${{ steps.determine.outputs.target }}
       image_tag:        ${{ steps.determine.outputs.image_tag }}
@@ -34,8 +34,6 @@ jobs:
       next_public_url:  ${{ steps.determine.outputs.next_public_url }}
       project_name:     ${{ steps.determine.outputs.project_name }}
       short_sha:        ${{ steps.determine.outputs.short_sha }}
-    container:
-      image: catthehacker/ubuntu:act-latest
     steps:
       - name: 🧹 Maintenance (High Density Cleanup)
         shell: bash