[CI] Add keepSubscriptions supports to matter_yamltests (project-chip…

…#28780)

examples/chip-tool/py_matter_chip_tool_adapter/matter_chip_tool_adapter/encoder.py

@@ -284,6 +284,8 @@ def __get_arguments(self, request):
             arguments, request.min_interval, "min-interval")
         arguments = self.__maybe_add(
             arguments, request.max_interval, "max-interval")
+        arguments = self.__maybe_add(
+            arguments, request.keep_subscriptions, "keepSubscriptions")
         arguments = self.__maybe_add(arguments, request.timed_interaction_timeout_ms,
                                      "timedInteractionTimeoutMs")
         arguments = self.__maybe_add(

scripts/py_matter_yamltests/matter_yamltests/parser.py

@@ -199,6 +199,7 @@ def __init__(self, test: dict, config: dict, definitions: SpecDefinitions, pics_
         self.fabric_filtered = _value_or_none(test, 'fabricFiltered')
         self.min_interval = _value_or_none(test, 'minInterval')
         self.max_interval = _value_or_none(test, 'maxInterval')
+        self.keep_subscriptions = _value_or_none(test, 'keepSubscriptions')
         self.timed_interaction_timeout_ms = _value_or_none(
             test, 'timedInteractionTimeoutMs')
         self.timeout = _value_or_none(test, 'timeout')
@@ -659,6 +660,10 @@ def min_interval(self):
     def max_interval(self):
         return self._test.max_interval
 
+    @property
+    def keep_subscriptions(self):
+        return self._test.keep_subscriptions
+
     @property
     def timed_interaction_timeout_ms(self):
         return self._test.timed_interaction_timeout_ms

scripts/py_matter_yamltests/matter_yamltests/yaml_loader.py

@@ -106,6 +106,7 @@ def __check_test_step(self, config: dict, content):
             'saveResponseAs': str,
             'minInterval': int,
             'maxInterval': int,
+            'keepSubscriptions': bool,
             'timeout': int,
             'timedInteractionTimeoutMs': int,
             'dataVersion': (list, int, str),  # Can be a variable