[#638] Unify test loggers

In some places we have debug=false, in others debug=true.
Let's be consistent.

Semantic patch:
```
@@
@@
-test.NewLogger(..., false)
+test.NewLogger(..., true)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

pkg/services/tree/signature_test.go

@@ -100,7 +100,7 @@ func TestMessageSign(t *testing.T) {
 
 	s := &Service{
 		cfg: cfg{
-			log:      test.NewLogger(t, false),
+			log:      test.NewLogger(t, true),
 			key:      &privs[0].PrivateKey,
 			nmSource: dummyNetmapSource{},
 			cnrSource: dummyContainerSource{