Keep only the latest Actions run

.github/workflows/magisk.yml

@@ -620,3 +620,10 @@ jobs:
         with:
           name: ${{ env.artifact_name }}
           path: "./${{ matrix.arch }}/*"
+      - name: Delete workflow runs
+        uses: Mattraks/delete-workflow-runs@v2
+        with:
+          token: ${{ github.token }}
+          repository: ${{ github.repository }}
+          retain_days: 0
+          keep_minimum_runs: 0