chore: Add update-lockfiles CI

Author: mrousavy

.github/workflows/update-lockfiles.yml

@@ -0,0 +1,50 @@
+name: 'Update Lockfiles (bun.lockb + Podfile.lock)'
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/update-lockfiles.yml"
+  pull_request:
+    paths:
+      - ".github/workflows/update-lockfiles.yml"
+      - "package.json"
+      - "**/package.json"
+
+permissions:
+  contents: write
+
+jobs:
+  update-lockfiles:
+    name: "Update lockfiles (bun.lockb + Podfile.lock)"
+    if: github.actor == 'dependabot[bot]'
+    runs-on: macOS-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.ref }}
+
+      - uses: oven-sh/setup-bun@v2
+
+      - name: Setup Ruby (bundle)
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.2
+          bundler-cache: true
+          working-directory: example/ios
+
+      - run: |
+          bun install
+          git add bun.lockb
+
+          cd example
+          bun pods
+          git add ios/Podfile.lock
+
+          cd ..
+          git config --global user.name 'dependabot[bot]'
+          git config --global user.email 'dependabot[bot]@users.noreply.github.com'
+          git commit --amend --no-edit
+          git push --force