Allow ispyb-processing to modify BLSamplePosition (#279)

Author: gfrn

grants/ispyb_processing.sql

@@ -9,6 +9,7 @@ CREATE ROLE IF NOT EXISTS ispyb_processing;
 -- Grants for ispyb_processing
 GRANT SELECT ON AdminVar TO 'ispyb_processing'; -- Hack TO allow ispyb_processing to connect through MaxScale
 GRANT SELECT,INSERT ON ImageQualityIndicators TO 'ispyb_processing'; -- Needed for bulk insertion of aggregated IQIs
+GRANT SELECT,INSERT,UPDATE ON BLSamplePosition TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImage TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImageAnalysis TO 'ispyb_processing';
 GRANT SELECT,INSERT,UPDATE ON BLSampleImage_has_AutoScoreClass TO 'ispyb_processing';