Tune a Tag discrepency in rule (#5053)

(cherry picked from commit b4db783)

Author: shashank-elastic

rules/promotions/crowdstrike_external_alerts.toml

@@ -5,7 +5,7 @@ maturity = "production"
 promotion = true
 min_stack_version = "8.18.0"
 min_stack_comments = "Introduced support for CrowdStrike alert promotion"
-updated_date = "2025/08/04"
+updated_date = "2025/09/02"
 
 [rule]
 author = ["Elastic"]
@@ -68,7 +68,7 @@ If this rule is enabled alongside the External Alerts promotion rule (UUID: eb07
 For information on troubleshooting the maximum alerts warning please refer to this [guide](https://www.elastic.co/guide/en/security/current/alerts-ui-monitor.html#troubleshoot-max-alerts).
 """
 severity = "medium"
-tags = ["Data Source: CrowdStrike", "Use Case: Threat Detection", "Resources: Investigation Guide", "Promotion: External Alerts"]
+tags = ["Data Source: Crowdstrike", "Use Case: Threat Detection", "Resources: Investigation Guide", "Promotion: External Alerts"]
 timestamp_override = "event.ingested"
 type = "query"