Add update action

Author: rosylilly

.github/workflows/update.yml

@@ -0,0 +1,25 @@
+name: Update
+
+on:
+  schedule:
+    - cron: '30 2 * * *'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          submodules: true
+      - name: Git Sumbodule Update
+        run: |
+          git pull --recurse-submodules
+          git submodule update --remote --recursive
+      - name: Commit update
+        run: |
+          git config --global user.name 'zenyfish'
+          git config --global user.email 'zenyfish@users.noreply.github.com'
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
+          git commit -am "Auto updated submodule references" && git push || echo "No changes to commit"

.gitmodules

@@ -1,3 +1,4 @@
 [submodule "source-data"]
 	path = source-data
 	url = https://github.com/zengin-code/source-data.git
+	branch = master