chore: add autoapprove-staging-reset workflow

Author: avidal

.github/workflows/autoapprove-staging-reset.yml

@@ -0,0 +1,27 @@
+name: Auto-approve staging resets
+
+on:
+  pull_request:
+    branches:
+      - reset-base # XXX: default branch / target for staging reset
+
+permissions:
+  contents: read
+  pull_requests: write
+
+jobs:
+  auto-approve:
+    runs-on: ubuntu-latest
+    steps:
+      - name: auto approve
+        if: startsWith(github.head_ref, 'staging-reset/staging-')
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          script: |
+            github.rest.pulls.createReview({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: "${{ github.ref }}".split("/")[2],
+              body: "Auto-approved via action for staging reset",
+              event: "APPROVE"
+            });