Message Received Despite Relay = false in Test TestMessageNotReceivedWithoutRelay

[AYAHASSAN287]

Description:

When running the test TestMessageNotReceivedWithoutRelay, the test fails because the receiver node successfully receives the message even though both the sender and receiver nodes have Relay = false.

This behavior contradicts the expected outcome, where the message should not be propagated through the network when the relay functionality is disabled.

---

Steps to Reproduce:

1. Run the following test case:

   go test -v -run ^TestMessageNotReceivedWithoutRelay$ ./testlibs/waku-go-tests
   

2.Observe the logs and test output.
3.Despite having Relay = false for both nodes, the message is still received, causing the test to fail.

** Expected Behavior:**

ReceiverNode should NOT receive the message when both nodes have Relay = false.
The test should pass if the message is not received.

Actual Behavior:

The receiver node receives the message, causing the test to fail unexpectedly.
This suggests that messages are being propagated even without the relay functionality enabled.

Test Failure Output:

 --- FAIL: TestMessageNotReceivedWithoutRelay (3.01s)
   test_no_relay_message.go:50: Test failed: ReceiverNode SHOULD NOT have received the message
   FAIL
   exit status 1
  FAIL    github.com/waku-org/waku-go-bindings/testlibs/waku-go-tests    3.015s


### **Possible Cause:**

The relay configuration (Relay = false) might not be properly enforced during node initialization.