MINOR: [DOCS] Added init change of pipeline_name to breaking changes …

…in docs (open-metadata#16397)

* Added pipeline_name to breaking changes

* Update openmetadata-docs/content/v1.4.x/deployment/upgrade/versions/130-to-140.md

---------

Co-authored-by: Pere Miquel Brull <[email protected]>

openmetadata-docs/content/v1.4.x/deployment/upgrade/versions/130-to-140.md

@@ -49,3 +49,38 @@ We have updated `openmetadata.yaml` config file and removed the below setting op
 dataQualityConfiguration:
    severityIncidentClassifier: ${DATA_QUALITY_SEVERITY_INCIDENT_CLASSIFIER:-"org.openmetadata.service.util.incidentSeverityClassifier.LogisticRegressionIncidentSeverityClassifier"}
 ```
+
+### Custom Connectors: Updates to the Initialization Method for Source Class
+
+We have introduced a new parameter, `pipeline_name` to the initialization method of source python classes. This change will also apply to the initialization of custom connectors.
+
+Please ensure to update your initialization methods accordingly, as demonstrated below.
+
+Before:
+```
+@classmethod
+def create(
+    cls,
+    config_dict: dict,
+    metadata_config: OpenMetadataConnection
+):
+    config: WorkflowSource = WorkflowSource.parse_obj(config_dict)
+    .....
+    .....
+    return cls(config, metadata_config)
+```
+
+After 1.4.0 Upgrade:
+```
+@classmethod
+def create(
+    cls,
+    config_dict: dict,
+    metadata_config: OpenMetadataConnection,
+    pipeline_name: Optional[str] = None
+):
+    config: WorkflowSource = WorkflowSource.parse_obj(config_dict)
+    .....
+    .....
+    return cls(config, metadata_config)
+```