feat: change default session type to multi

Author: mpetazzoni

wherobots/db/constants.py

@@ -12,7 +12,7 @@
 
 DEFAULT_RUNTIME: Runtime = Runtime.TINY
 DEFAULT_REGION: Region = Region.AWS_US_WEST_2
-DEFAULT_SESSION_TYPE: SessionType = SessionType.SINGLE
+DEFAULT_SESSION_TYPE: SessionType = SessionType.MULTI
 DEFAULT_READ_TIMEOUT_SECONDS: float = 0.25
 DEFAULT_SESSION_WAIT_TIMEOUT_SECONDS: float = 900