Add docs owner metadata

doc/topics/web_application_firewall/index.md

+---
+stage: Defend
+group: Container Security
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
+---
+
+
 # Web Application Firewall - ModSecurity
 
 A web application firewall (or WAF) filters, monitors, and blocks HTTP traffic to

doc/topics/web_application_firewall/quick_start_guide.md

+---
+stage: Defend
+group: Container Security
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
+---
+
 # Getting started with the Web Application Firewall
 
 This is a step-by-step guide that will help you use GitLab's [Web Application Firewall](index.md) after

doc/user/application_security/dependency_scanning/analyzers.md

+---
+type: reference, howto
+stage: Secure
+group: Composition Analysis
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
+---
+
 # Dependency Scanning Analyzers **(ULTIMATE)**
 
 Dependency Scanning relies on underlying third party tools that are wrapped into

doc/user/application_security/security_dashboard/index.md

 ---
 type: reference, howto
+stage: Secure
+group: Threat Insights
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
 # GitLab Security Dashboard **(ULTIMATE)**

doc/user/application_security/vulnerabilities/index.md

 ---
 type: reference, howto
 stage: Secure
-group: Vulnerability Research
+group: Threat Insights
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---