Add GitHub Action to push translation sources to Crowdin

.github/workflows/crowdin-upload.yml

@@ -0,0 +1,21 @@
+name: Crowdin Action
+
+on:
+  push:
+    branches: [ develop ]
+
+jobs:
+  upload-sources-to-crowdin:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Crowdin push
+        uses: crowdin/github-action@v1
+        with:
+          upload_sources: true
+          upload_translations: false
+          download_translations: false
+          project_id: ${{ secrets.CROWDIN_PROJECT_ID }}
+          token: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}