fix: credentials leakage in request headers

The headers request contains the authentication, and it gets
printed in the robot log report.

src/RequestsLibrary/log.py

@@ -24,10 +24,12 @@ def log_request(response):
     else:
         original_request = request
         redirected = ''
+    headers_hidden_auth = original_request.headers.copy()
+    headers_hidden_auth["Authorization"] = "********"
     logger.info("%s Request : " % original_request.method.upper() +
                 "url=%s %s\n " % (original_request.url, redirected) +
                 "path_url=%s \n " % original_request.path_url +
-                "headers=%s \n " % original_request.headers +
+                "headers=%s \n " % headers_hidden_auth +
                 "body=%s \n " % format_data_to_log_string(original_request.body))