[v9.3.x] RelativeTimeRangePicker: Don't respond to submit event when nested in a form element (#60520)

RelativeTimeRangePicker: Don't respond to submit event when nested in a form element (#60495)

(cherry picked from commit 68b044fb7c)

Co-authored-by: Gilles De Mey <gilles.de.mey@gmail.com>

packages/grafana-ui/src/components/DateTimePickers/RelativeTimeRangePicker/RelativeTimeRangePicker.tsx

@@ -103,7 +103,7 @@ export function RelativeTimeRangePicker(props: RelativeTimeRangePickerProps) {
 
   return (
     <div className={styles.container} ref={setMarkerElement}>
-      <button className={styles.pickerInput} onClick={onOpen}>
+      <button className={styles.pickerInput} type="button" onClick={onOpen}>
         <span className={styles.clockIcon}>
           <Icon name="clock-nine" />
         </span>