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.

scouter/activities/gates.py

@@ -309,11 +309,13 @@ class Gates(SientiaMonitoring):
 
         # Register metrics
         for _, row in tag_values.iterrows():
-            metrics.TAG_CHANGES_MONITOR.labels(
-                pod_id=self.pod_id,
-                model_name=metadata['model_name'],
-                workflow_name=metadata['workflow_name'],
-                tag_name=row['variable'],
-            ).set(row['value'])
+            value = row['value']
+            if value is not None:
+                metrics.TAG_CHANGES_MONITOR.labels(
+                    pod_id=self.pod_id,
+                    model_name=metadata['model_name'],
+                    workflow_name=metadata['workflow_name'],
+                    tag_name=row['variable'],
+                ).set(row['value'])
 
         self.info(f'Metrics written for {metadata["model_name"]}', metadata=metadata)