MDL-79618 block_timeline: Set web services to read-only

Set the web service functions core_calendar_get_action_events_by_timesort
and core_calendar_get_action_events_by_timesort to use read only
sessions. These functions can hold long session locks
and read-only sessions will prevent them blocking other requests.

lib/db/services.php

@@ -228,6 +228,7 @@
         'capabilities' => 'moodle/calendar:manageentries, moodle/calendar:manageownentries, moodle/calendar:managegroupentries',
         'ajax' => true,
         'services' => array(MOODLE_OFFICIAL_MOBILE_SERVICE),
+        'readonlysession' => true,
     ),
     'core_calendar_get_action_events_by_course' => array(
         'classname' => 'core_calendar_external',
@@ -669,6 +670,7 @@
         'type' => 'read',
         'ajax' => true,
         'services' => array(MOODLE_OFFICIAL_MOBILE_SERVICE),
+        'readonlysession' => true,
     ),
     'core_course_get_recent_courses' => array(
         'classname' => 'core_course_external',

version.php

@@ -29,7 +29,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2023102700.00;              // YYYYMMDD      = weekly release date of this DEV branch.
+$version  = 2023102700.01;              // YYYYMMDD      = weekly release date of this DEV branch.
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.
 $release  = '4.4dev (Build: 20231027)'; // Human-friendly version name