[WAF] Add noindex to legacy features (cloudflare#22772)

Author: pedrosousa

src/content/docs/waf/reference/legacy/index.mdx

@@ -5,8 +5,8 @@ sidebar:
   order: 5
   group:
     hideIndex: true
-head: []
 description: Documentation for deprecated WAF features.
+noindex: true
 ---
 
 import { DirectoryListing } from "~/components";

src/content/docs/waf/reference/legacy/old-rate-limiting/index.mdx

@@ -7,6 +7,7 @@ sidebar:
   group:
     badge:
       text: Deprecated
+noindex: true
 ---
 
 Cloudflare Rate Limiting automatically identifies and mitigates excessive request rates for specific URLs or for an entire domain.

src/content/docs/waf/reference/legacy/old-rate-limiting/troubleshooting.mdx

@@ -7,7 +7,7 @@ sidebar:
 head:
   - tag: title
     content: Troubleshoot Rate Limiting (previous version)
-
+noindex: true
 ---
 
 A few common rate limiting configuration issues prevent proper request matches:

src/content/docs/waf/reference/legacy/old-waf-managed-rules/index.mdx

@@ -7,6 +7,7 @@ sidebar:
   group:
     badge:
       text: Deprecated
+noindex: true
 ---
 
 Managed rules, a feature of Cloudflare WAF (Web Application Firewall), identifies and removes suspicious activity for HTTP `GET` and `POST` requests.

src/content/docs/waf/reference/legacy/old-waf-managed-rules/troubleshooting.mdx

@@ -7,6 +7,7 @@ sidebar:
 head:
   - tag: title
     content: Troubleshoot WAF managed rules (previous version)
+noindex: true
 ---
 
 By default, WAF managed rules are fully managed via the Cloudflare dashboard and are compatible with most websites and web applications. However, false positives and false negatives may occur: