docs: Fix link to AttributeContext.HttpRequest.body (#23151)

Risk Level: N/A
Testing: N/A
Docs Changes: This is a small docs change

Signed-off-by: Dhi Aurrahman <dio@rockybars.com>

Mirrored from https://github.com/envoyproxy/envoy @ 4c0e53d8cee46d9d886ceed011b1a52000d261cf

envoy/extensions/filters/http/ext_authz/v3/ext_authz.proto

@@ -173,8 +173,8 @@ message BufferSettings {
 
   // If true, the body sent to the external authorization service is set with raw bytes, it sets
   // the :ref:`raw_body<envoy_v3_api_field_service.auth.v3.AttributeContext.HttpRequest.raw_body>`
-  // field of HTTP request attribute context. Otherwise, :ref:`
-  // body<envoy_v3_api_field_service.auth.v3.AttributeContext.HttpRequest.body>` will be filled
+  // field of HTTP request attribute context. Otherwise, :ref:`body
+  // <envoy_v3_api_field_service.auth.v3.AttributeContext.HttpRequest.body>` will be filled
   // with UTF-8 string request body.
   bool pack_as_bytes = 3;
 }