Fix crowdin for docs - download workflow (#12481)

.github/workflows/crowdin_download.yml

@@ -0,0 +1,40 @@
+name: Crowdin - Download Translations
+
+# https://github.com/crowdin/github-action/tree/master
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  synchronize-with-crowdin:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: crowdin action
+        uses: crowdin/github-action@v2
+        with:
+          config: 'docs/crowdin.yml'
+          upload_sources: false
+          upload_translations: false
+          download_translations: true
+          localization_branch_name: l10n_crowdin_docs_translations
+          create_pull_request: true
+          pull_request_title: 'New QGC guide translations (Crowdin)'
+          pull_request_body: 'New QGC guide Crowdin translations by [Crowdin GH Action](https://github.com/crowdin/github-action)'
+          pull_request_base_branch_name: 'main'
+        env:
+          # A classic GitHub Personal Access Token with the 'repo' scope selected (the user should have write access to the repository).
+          GITHUB_TOKEN: ${{ secrets.PX4BUILDBOT_ACCESSTOKEN }}
+
+          # A numeric ID, found at https://crowdin.com/project/<projectName>/tools/api
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_DOCS_PROJECT_ID }}
+
+          # Visit https://crowdin.com/settings#api-key to create this token
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.PX4BUILDBOT_CROWDIN_PERSONAL_TOKEN }}

docs/crowdin.yml

@@ -0,0 +1,12 @@
+"project_id_env": "CROWDIN_PROJECT_ID"
+"api_token_env": "CROWDIN_PERSONAL_TOKEN"
+"base_path": "../"
+
+"preserve_hierarchy": true
+
+"files": [
+  {
+    "source": "/docs/en/**/*.md",
+    "translation": "/docs/%two_letters_code%/**/%original_file_name%"
+  }
+]