Fix fly build step

.github/workflows/fly.yml

@@ -9,6 +9,21 @@ jobs:
   test:
     name: Run Tests
     runs-on: ubuntu-latest
+    env:
+      MONGODB_URI: mongodb://localhost:27017/
+      DATABASE_NAME: site_db
+      MICROPUB_SECRET: open-sesame
+      FQD: http://localhost:5001
+    services:
+      mongodb:
+        image: mongo:8
+        ports:
+          - 27017:27017
+        options: >-
+          --health-cmd "mongosh --eval 'db.adminCommand(\"ping\")'" 
+          --health-interval 10s 
+          --health-timeout 5s 
+          --health-retries 5
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python