Missed addition

- Server build action

.gitea/workflows/DRBv3_server_build.yaml

@@ -0,0 +1,29 @@
+name: DRB Server Build
+
+on:
+  push:
+    branches:
+      - master
+
+env:
+  NODE_ENV: production
+  SERVER_PORT: 3000
+  MONGO_URL: ${{ secrets.MONGO_URL }}
+  DISCORD_TOKEN: ${{ secrets.DISCORD_TOKEN }}
+
+jobs:
+  drb_mocha_tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Build the latest code
+        working-directory: './server'
+        run: make build