[next] fix: update timezone data and automate future updates

.github/workflows/update_timezones.yml

@@ -0,0 +1,49 @@
+name: Update timezones-data (zones.json)
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "5 4 1 * *"
+
+jobs:
+  update-timezones:
+    runs-on: ubuntu-latest
+    name: update-timezones
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download vzic
+        run: git clone https://github.com/libical/vzic.git
+
+      - name: Build vzic
+        run: |
+          cd vzic
+          make -B
+
+      - name: Get python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Execute update script
+        run: python resources/timezones/update-zones.py --vzic vzic/vzic
+
+      - name: Remove vzic
+        run: rm -r vzic
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ secrets.COMMAND_BOT_PAT }}
+          commit-message: "fix: update timezones data"
+          committer: GitHub <[email protected]>
+          author: nextcloud-command <[email protected]>
+          signoff: true
+          branch: automated/noid/update-timezones-data
+          base: main
+          title: "Update timezones data"
+          body: |
+            Auto-generated update of timezones data
+          labels: |
+            3. to review