GitHub: setup action

Author: SalimTerryLi

.github/workflows/json_generation.yml

@@ -0,0 +1,20 @@
+name: Frontend JSON Generation
+on:
+  push:
+  pull_request:
+jobs:
+  generation:
+    runs-on: debian-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Python setup
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      - name: Install requirements
+        run: pip install -r requirements.txt
+      - name: Validate YAMLs
+        run: make -j$(nproc) validate
+      - name: Generate JSONs
+        run: make O=./build -j$(nproc)