Update delegated alert dismissal instructions (#62445)

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ben Ahmady <32935794+subatoi@users.noreply.github.com>

Author: 3 people

content/code-security/how-tos/manage-security-alerts/manage-code-scanning-alerts/enable-delegated-alert-dismissal.md

@@ -15,7 +15,7 @@ category:
   - Find and fix code vulnerabilities
 ---
 
-{% data reusables.security.delegated-alert-dismissal-capacity %}
+>[!NOTE] {% data reusables.security.delegated-alert-dismissal-capacity %}
 
 ## Configuring delegated dismissal for a repository
 

content/code-security/how-tos/manage-security-alerts/manage-dependabot-alerts/enable-delegated-alert-dismissal.md

@@ -12,7 +12,7 @@ category:
   - Secure your dependencies
 ---
 
-{% data reusables.security.delegated-alert-dismissal-capacity %}
+>[!NOTE] {% data reusables.security.delegated-alert-dismissal-capacity %}
 
 ## Configuring delegated dismissal for a repository
 

content/code-security/how-tos/manage-security-alerts/manage-secret-scanning-alerts/enable-delegated-dismissal.md

@@ -16,7 +16,10 @@ category:
   - Protect your secrets
 ---
 
-{% data reusables.security.delegated-alert-dismissal-capacity %}
+>[!NOTE]
+> {% data reusables.security.delegated-alert-dismissal-capacity %}
+> 
+> Alert dismissal requests expire after 1 week. After this, dismissal requests must be resubmitted.
 
 ## Configuring delegated dismissal for a repository
 
@@ -55,4 +58,4 @@ To learn more about security configurations, see [AUTOTITLE](/code-security/conc
 
 ## Next steps
 
-Now that you have enabled delegated alert dismissal for {% data variables.product.prodname_secret_scanning %}, you should regularly review alert dismissal requests to maintain an accurate alert count and unblock your developers. See [AUTOTITLE](/code-security/how-tos/manage-security-alerts/remediate-alerts-at-scale/review-alert-dismissal-requests).
+Now that you have enabled delegated alert dismissal for {% data variables.product.prodname_secret_scanning %}, you should regularly review alert dismissal requests to maintain an accurate alert count and unblock your developers. See [AUTOTITLE](/code-security/how-tos/manage-security-alerts/remediate-alerts-at-scale/review-alert-dismissal-requests).

data/reusables/security/delegated-alert-dismissal-capacity.md

@@ -1,2 +1 @@
-> [!NOTE]
-> The implementation of this approval process can potentially cause some friction, so it's important to ensure that the team of security managers has adequate coverage to review dismissal requests regularly before proceeding.
+The implementation of this approval process can potentially cause some friction, so it's important to ensure that the team of security managers has adequate coverage to review dismissal requests regularly before proceeding.