fix(ci): update GitHub Actions workflow for testing

- Set JWT_SECRET and MONGO_URI_DOCKER as environment secrets
- Added 'environment: GitHub actions' to job

Author: iodsky

.github/workflows/ci.yml

@@ -11,6 +11,10 @@ jobs:
   test:
     name: Run Tests
     runs-on: ubuntu-latest
+    environment: GitHub actions
+    env:
+      JWT_SECRET: ${{secrets.JWT_SECRET}}
+      MONGO_URI_DOCKER: ${{secrets.MONGO_URI_DOCKER}}
 
     steps:
       - name: Check out repository