create action

.github/workflows/fetch-data.yml

@@ -0,0 +1,15 @@
+name: Fetch data
+
+jobs:
+  fetch:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          cache: "pip" # caching pip dependencies
+        run: pip install -r requirements.txt
+      - name: Get data
+        run: python src/beachland.py > beachland.json