improvement(decorator): not raise error event by silence decorator

There are cases when it is not needed to send error event from silence
decorator. It just needs to silence the failure and keed its info in the log

sdcm/tester.py

@@ -224,10 +224,11 @@ def my_method(self):
     test = None
     name: str = None
 
-    def __init__(self, parent=None, name: str = None, verbose: bool = False):
+    def __init__(self, parent=None, name: str = None, verbose: bool = False, raise_error_event=True):
         self.parent = parent
         self.name = name
         self.verbose = verbose
+        self.raise_error_event = raise_error_event
         self.log = logging.getLogger(self.__class__.__name__)
 
     def __enter__(self):
@@ -259,8 +260,10 @@ def __exit__(self, exc_type, exc_val, exc_tb):
             self._store_test_result(self.parent, exc_val, exc_tb, self.name)
         return True
 
-    @staticmethod
-    def _store_test_result(parent, exc_val, exc_tb, name):
+    def _store_test_result(self, parent, exc_val, exc_tb, name):
+        if not self.raise_error_event:
+            return
+
         TestFrameworkEvent(
             source=parent.__class__.__name__,
             source_method=name,