add no response bot (#232)

.github/workflows/no-response.yaml

@@ -0,0 +1,21 @@
+name: No Response Bot
+
+on:
+  issue_comment:
+    types: [created]
+  schedule:
+    - cron: '0 4 * * *'
+
+jobs:
+  noResponse:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: lee-dohm/no-response@v0.5.0
+        with:
+          closeComment: >
+              This issue has been automatically closed because it has been awaiting a response for too long.
+              When you have time to to work with the maintainers to resolve this issue, please post a new comment and it will be re-opened.
+              If the issue has been locked for editing by the time you return to it, please open a new issue and reference this one.
+          daysUntilClose: 30
+          responseRequiredLabel: awaiting response
+          token: ${{ github.token }}