add SSL_CERT_FILE support, add into tests (#18)

.github/workflows/rust.yml

@@ -23,8 +23,10 @@ jobs:
 
     - name: Run tests
       run: |
-        ./start-server.sh
+        ./tests/start-server.sh
         export SERVER_ENDPOINT=localhost:9000
         export ACCESS_KEY=minioadmin
         export SECRET_KEY=minioadmin
+        export ENABLE_HTTPS=1
+        export SSL_CERT_FILE=./tests/public.crt
         cargo test --verbose -- --nocapture