feat: add GitHub Actions to sync with Crowdin

.github/workflows/crowdin.yml

@@ -0,0 +1,28 @@
+name: Crowdin Action
+
+on:
+  workflow_dispatch:
+
+jobs:
+  synchronize-with-crowdin:
+    name: Synchronize with Crowdin
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: crowdin action
+        uses: crowdin/github-action@v1
+        with:
+          upload_sources: true
+          upload_translations: false
+          download_translations: true
+          localization_branch_name: l10n_crowdin_translations
+          create_pull_request: true
+          pull_request_title: 'New Crowdin Translations'
+          pull_request_body: 'New Crowdin translations by [Crowdin GH Action](https://github.com/crowdin/github-action)'
+          pull_request_base_branch_name: 'main'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}