Add Scheduled Job script to auto-refresh dashboard daily

- Created a script to automatically refresh a specified dashboard at 12 AM every day.
- Implemented functionality to update the `last_refreshed` field on the target dashboard in `pa_dashboards` to simulate refresh.
- Added README.md with setup instructions, script details, and usage notes.

This feature ensures dashboards are refreshed without manual intervention, enhancing data relevance for daily usage.

Author: Southpaw09

Background Scripts/Refresh Dashboards/README.md

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+# Automatic Dashboard Refresh Script for ServiceNow
+
+This script, designed for ServiceNow, automatically refreshes a specified dashboard daily at 12:00 AM. By creating a Scheduled Job with this script, users can ensure their dashboard data is updated without manual intervention.
+
+## Overview
+
+ServiceNow’s Scheduled Jobs feature allows you to run server-side scripts at specified intervals. This script uses the `pa_dashboards` table to update the `last_refreshed` field on a given dashboard record, simulating a refresh.
+
+## Prerequisites
+
+- Access to ServiceNow with permissions to create and run Scheduled Jobs.
+- The `sys_id` of the dashboard you want to refresh.
+
+## Setup Instructions
+
+1. **Navigate to Scheduled Jobs**:
+   - Go to **System Definition > Scheduled Jobs** in ServiceNow.
+   
+2. **Create a New Scheduled Job**:
+   - Set the job to run at **12:00 AM** daily.
+
+3. **Add the Script**:
+   - Copy and paste the script below into the Scheduled Job’s script field.
+   - Replace `YOUR_DASHBOARD_SYS_ID` with the `sys_id` of the dashboard you want to refresh.
+
+4. **Save and Activate the Job**:
+   - Ensure the job is active and will repeat daily.

Background Scripts/Refresh Dashboards/script.js

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+// Define the sys_id of the dashboard you want to refresh
+var dashboardSysId = 'YOUR_DASHBOARD_SYS_ID';
+
+// Function to simulate the dashboard refresh
+function refreshDashboard(dashboardSysId) {
+    // Use the Service Portal widget for dashboards to refresh them
+    var dashboardGR = new GlideRecord('pa_dashboards');
+    if (dashboardGR.get(dashboardSysId)) {
+        // Trigger dashboard refresh by updating a field or simulating a reload
+        dashboardGR.setValue('last_refreshed', gs.nowDateTime());
+        dashboardGR.update();
+        gs.info('Dashboard with sys_id ' + dashboardSysId + ' refreshed at ' + gs.nowDateTime());
+    } else {
+        gs.error('Dashboard with sys_id ' + dashboardSysId + ' not found.');
+    }
+}
+
+// Call the function to refresh the specified dashboard
+refreshDashboard(dashboardSysId);