change duckdb connection held check to log after 3 hours

runtime/drivers/duckdb/duckdb.go

@@ -729,7 +729,7 @@ func (c *connection) periodicallyEmitStats(d time.Duration) {
 }
 
 // maxAcquiredConnDuration is the maximum duration a connection can be held for before we consider it potentially hanging/deadlocked.
-const maxAcquiredConnDuration = 1 * time.Hour
+const maxAcquiredConnDuration = 3 * time.Hour
 
 // periodicallyCheckConnDurations periodically checks the durations of all acquired connections and logs a warning if any have been held for longer than maxAcquiredConnDuration.
 func (c *connection) periodicallyCheckConnDurations(d time.Duration) {