Auto request review workflow (#44332)

.github/auto_request_review.yml

+# The reviewers configuration for the auto_request_review workflow
+# See https://github.com/necojackarc/auto-request-review/tree/master?tab=readme-ov-file#reviewers-configuration
+# for the spec
+
+reviewers:
+  groups:
+    migration-owners:
+      - qnkhuat
+      - calherries
+      #- team:core-backend-components # can use team, but it needs a PAT, will figure it out later
+
+files:
+  # migrations related files
+  'resources/migrations/**':
+    - migration-owners
+  'src/metabase/db/custom_migrations.clj':
+    - migration-owners
+
+options:
+  ignore_draft: true
+  ignored_keywords:
+    - DO NOT REVIEW
+    - WIP
+  enable_group_assignment: false

.github/workflows/auto-request-review.yml

+# Config is in .github/auto_request_review.yml
+name: Auto Request Review
+
+on:
+  pull_request:
+    types: [opened, ready_for_review, reopened, synchronize]
+
+jobs:
+  auto-request-review:
+    # Don't run on forked repos
+    if: ${{ !github.event.pull_request.head.repo.fork }}
+    permissions:
+      contents: read
+      pull-requests: write
+    name: Auto Request Review
+    runs-on: ubuntu-latest
+    steps:
+      - name: Request review based on files changes and/or groups the author belongs to
+        uses: necojackarc/auto-request-review@v0.13.0
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'