Add GitHub action to sync Localazy strings.

.github/workflows/sync-localazy.yml

@@ -0,0 +1,28 @@
+name: Sync Localazy
+on:
+  schedule:
+    # At 00:00 on every Monday UTC
+    - cron: '0 0 * * 1'
+
+jobs:
+  sync-localazy:
+    runs-on: ubuntu-latest
+    # Skip in forks
+    if: github.repository == 'vector-im/element-x-android'
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.8
+      - name: Run Localazy script
+        run: ./tools/localazy/downloadStrings.sh --all
+      - name: Create Pull Request for Strings
+        uses: peter-evans/create-pull-request@v4
+        with:
+          commit-message: Sync Strings from Localazy
+          title: Sync Strings
+          body: |
+            - Update Strings from Localazy
+          branch: sync-localazy
+          base: develop