SIENTIAPDE-1273

Update GITHUB_BRANCH in values.yaml to feature/SIENTIAPDE-1273, increment Helm chart version to 0.6.0, and modify metrics registration in Gates class to skip None values. Update test cases to reflect changes in tag values.

tests/activities/test_gates.py

@@ -382,8 +382,8 @@ async def test_write_metrics(mock_metrics, gates_fixture):
     input_data = {
         'metadata': metadata['metadata'],
         'tag_values': {
-            'variable': ['tag1', 'tag2'],
-            'value': [1.0, 2.0],
+            'variable': ['tag1', 'tag2', 'tag3'],
+            'value': [1.0, 2.0, None],
         },
     }
     await gates_fixture.write_metrics(input_data)
@@ -394,6 +394,7 @@ async def test_write_metrics(mock_metrics, gates_fixture):
     )
     mock_metrics.LABORIOUS_DATA_WRITTEN_COUNT.labels.return_value.inc.assert_called_once()
 
+    # Only tags with None values should be registered
     mock_metrics.TAG_CHANGES_MONITOR.labels.return_value.set.assert_has_calls(
         [
             call(1.0),