feat: Configure deploy workflow concurrency to dynamically group by environment and enable in-progress cancellation.

.gitea/workflows/deploy.yml

@@ -14,8 +14,8 @@ on:
         default: 'false'
 
 concurrency:
-  group: ${{ github.workflow }}
-  cancel-in-progress: false
+  group: ${{ github.workflow }}-${{ (github.ref_type == 'tag' && !contains(github.ref_name, '-')) && 'prod' || (github.ref_type == 'tag' && 'staging' || 'testing') }}
+  cancel-in-progress: true
 
 jobs:
   # ──────────────────────────────────────────────────────────────────────────────