Bumped release stage version (#13095)

Author: lazebnyi

airbyte-config/init/src/main/resources/seed/source_definitions.yaml

@@ -790,7 +790,7 @@
   documentationUrl: https://docs.airbyte.io/integrations/sources/s3
   icon: s3.svg
   sourceType: file
-  releaseStage: alpha
+  releaseStage: beta
 - name: SalesLoft
   sourceDefinitionId: 41991d12-d4b5-439e-afd0-260a31d4c53f
   dockerRepository: airbyte/source-salesloft