feat(ci): add stalebot

.github/workflows/stale-bot.yml

@@ -0,0 +1,31 @@
+#
+#  Copyright (c) 2024 Contributors to the Eclipse Foundation
+#
+#  See the NOTICE file(s) distributed with this work for additional
+#  information regarding copyright ownership.
+#
+#  This program and the accompanying materials are made available under the
+#  terms of the Apache License, Version 2.0 which is available at
+#  https://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#
+
+name: Close Inactive Issues
+
+on:
+  schedule:
+    - cron: "30 1 * * *" # once a day (1:30 UTC)
+  workflow_dispatch: # allow manual trigger
+
+jobs:
+  trigger-workflow:
+    uses: eclipse-edc/.github/.github/workflows/stale-bot.yml@main
+    secrets:
+      envGH: ${{ secrets.GITHUB_TOKEN }}