feat: Add versioning to dashboards dataset split (#78709)

Adds versioning to dataset source so we can re-run widgets

Requires getsentry/getsentry#15303

Author: shruthilayaj

src/sentry/discover/dashboard_widget_split.py

@@ -138,7 +138,7 @@ def _get_and_save_split_decision_for_dashboard_widget(
             _save_split_decision_for_widget(
                 widget,
                 widget_dataset,
-                DatasetSourcesTypes.INFERRED,
+                DatasetSourcesTypes.SPLIT_VERSION_1,
             )
         return widget_dataset, False
 
@@ -169,7 +169,7 @@ def _get_and_save_split_decision_for_dashboard_widget(
                     _save_split_decision_for_widget(
                         widget,
                         DashboardWidgetTypes.TRANSACTION_LIKE,
-                        DatasetSourcesTypes.INFERRED,
+                        DatasetSourcesTypes.SPLIT_VERSION_1,
                     )
 
                 return DashboardWidgetTypes.TRANSACTION_LIKE, True
@@ -213,7 +213,7 @@ def _get_and_save_split_decision_for_dashboard_widget(
             _save_split_decision_for_widget(
                 widget,
                 DashboardWidgetTypes.ERROR_EVENTS,
-                DatasetSourcesTypes.INFERRED,
+                DatasetSourcesTypes.SPLIT_VERSION_1,
             )
         return DashboardWidgetTypes.ERROR_EVENTS, True
 
@@ -246,7 +246,7 @@ def _get_and_save_split_decision_for_dashboard_widget(
             _save_split_decision_for_widget(
                 widget,
                 DashboardWidgetTypes.TRANSACTION_LIKE,
-                DatasetSourcesTypes.INFERRED,
+                DatasetSourcesTypes.SPLIT_VERSION_1,
             )
 
         return DashboardWidgetTypes.TRANSACTION_LIKE, True

src/sentry/models/dashboard_widget.py

@@ -96,6 +96,10 @@ class DatasetSourcesTypes(Enum):
      Was an ambiguous dataset forced to split (i.e. we picked a default)
     """
     FORCED = 3
+    """
+     Dataset inferred by split querscript, version 1
+    """
+    SPLIT_VERSION_1 = 4
 
     @classmethod
     def as_choices(cls):