feat(alerts & reports): Easier to read execution logs (#13752)

* Prep for migration

* Migration for execution id column

* Generate execution ids for alerts and reports

* Change execution id range

* Add execution id to API endpoint

* Add execution id to execution log view

* Change execution id range

* Change execution id to a uuid

* Fix execution id type

* Switch state and exec. id columns

* Change db column to UUIDType

* Python lint

* Fix failing frontend tests

* execution_id -> uuid

* Fix migration head

* lint

* Use celery task id as the execution id

* lint

* lint for real

* Fix tests

superset-frontend/spec/javascripts/views/CRUD/alert/ExecutionLog_spec.jsx

@@ -43,6 +43,7 @@ const mockannotations = [...new Array(3)].map((_, i) => ({
   start_dttm: new Date().toISOString,
   state: 'Success',
   value: `report ${i} value`,
+  uuid: 'f44da495-b067-4645-b463-3be98d5f3206',
 }));
 
 fetchMock.get(executionLogsEndpoint, {