feat: add upload translation workflow

.github/workflows/translations-upload.yml

@@ -0,0 +1,58 @@
+name: 'Extract and upload translations'
+
+on:
+  workflow_dispatch:
+  workflow_call:
+  # Disabled until i18n PR is landed.
+  # push:
+  #   branches: ['main']
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  extract_translations:
+    name: Extract and upload translations
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+
+      - uses: ./.github/actions/node-install
+
+      - name: Extract and compile translations
+        run: |
+          npm run translate:extract
+          npm run translate:compile
+
+      - name: Check and commit any files created
+        run: |
+          git config --global user.name 'github-actions'
+          git config --global user.email 'github-actions@documenso.com'
+          git add packages/lib/translations
+          git diff --staged --quiet --exit-code || (git commit -m "chore: extract translations" && git push)
+
+      - name: Compile translations
+        id: compile_translations
+        run: npm run translate:compile -- -- --strict
+        continue-on-error: true
+
+      - name: Upload missing translations
+        if: ${{ steps.compile_translations.outcome == 'failure' }}
+        uses: crowdin/github-action@v2
+        with:
+          upload_sources: true
+          upload_translations: true
+          download_translations: false
+          localization_branch_name: chore/translations
+        env:
+          # A numeric ID, found at https://crowdin.com/project/<projectName>/tools/api
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+
+          # Visit https://crowdin.com/settings#api-key to create this token
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}