fix: linter

Author: akrem-chabchoub

pkg/p2p/libp2p/stream_test.go

@@ -79,6 +79,7 @@ func TestStreamVersion(t *testing.T) {
 
 			if v == nil {
 				t.Fatal("expected version to be non-nil")
+				return
 			}
 
 			expected := semver.Version{Major: tc.wantMajor, Minor: tc.wantMinor}