ci: first draft GH Action for update-i18n

.github/workflows/update-i18n.yml

@@ -0,0 +1,39 @@
+name: Update i18n
+
+on:
+  workflow_dispatch: # Allows you to run this workflow manually from the Actions tab
+  schedule:
+    - cron: 0 0 * * * # daily at midnight UTC = 7-8pm US Eastern
+
+concurrency:
+  group: '${{ github.workflow }}'
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  ci-cd:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          cache: 'npm'
+          node-version-file: '.nvmrc'
+      - name: Info
+        run: |
+          cat <<EOF
+          Node version: $(node --version)
+          NPM version: $(npm --version)
+          GitHub ref: ${{ github.ref }}
+          GitHub head ref: ${{ github.head_ref }}
+          EOF
+      - name: Setup
+        run: npm ci
+      - name: Extract translations
+        run: npm run i18n:src
+      - name: Push translations
+        env:
+          TX_TOKEN: ${{ secrets.TX_TOKEN }}
+        run: npm run i18n:push