feat(TrustedRestClientTool): allow to stream response

solidify-rest-client/src/main/java/ch/unige/solidify/util/TrustedRestClientTool.java

@@ -63,7 +63,7 @@ public class TrustedRestClientTool extends AbstractRestClientTool {
   }
 
   @Override
-  protected synchronized RestTemplateBuilder getRestTemplateBuilder() {
+  public synchronized RestTemplateBuilder getRestTemplateBuilder() {
     if (this.restTemplateBuilder == null) {
       this.restTemplateBuilder = super.getRestTemplateBuilder();
     }