Set recordTimeStamp default to current timestamp (#278)

Author: gfrn

schemas/ispyb/updates/2025_05_14_BLSamplePosition_recordTimeStamp_default.sql

@@ -0,0 +1,5 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2025_05_14_BLSamplePosition_recordTimeStamp_default.sql', 'ONGOING');
+
+ALTER TABLE BLSamplePosition MODIFY COLUMN recordTimeStamp datetime DEFAULT current_timestamp;
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2025_05_14_BLSamplePosition_recordTimeStamp_default.sql';