ci: replace stale bot with custom implementation

The stale action has a bug where it won't close an issue/PR if it has
comments after the stale label.

.github/workflows/response.yml

@@ -0,0 +1,35 @@
+name: no_response
+on:
+  schedule:
+    - cron: '30 1 * * *' # Run every day at 01:30
+  workflow_dispatch:
+  issue_comment:
+
+jobs:
+  close:
+    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/github-script@v6
+        with:
+          script: |
+            const script = require('./.github/scripts/close_unresponsive.js')
+            await script({github, context})
+
+  remove_label:
+    if: github.event_name == 'issue_comment'
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/github-script@v6
+        with:
+          script: |
+            const script = require('./.github/scripts/remove_response_label.js')
+            await script({github, context})