Update description of Custom Logs input (#9386)

Update description of Custom Logs input to provide details to which settings can be used.

* Update changelog.yml
* Update packages/log/manifest.yml

Co-authored-by: Tiago Queiroz <[email protected]>

Author: lucabelluccini

packages/log/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "2.3.1"
+  changes:
+    - description: Enhance description of custom option
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/9386
 - version: "2.3.0"
   changes:
     - description: Expose exclude_files option

packages/log/manifest.yml

@@ -4,7 +4,7 @@ title: Custom Logs
 description: >-
   Collect custom logs with Elastic Agent.
 type: input
-version: 2.3.0
+version: 2.3.1
 categories:
   - custom
   - custom_logs
@@ -63,7 +63,7 @@ policy_templates:
       - name: custom
         title: Custom configurations
         description: >
-          Here YAML configuration options can be used to be added to your configuration. Be careful using this as it might break your configuration file.
+          Additional settings to be added to the configuration. Be careful using this as it might break the input as those settings are not validated and can override the settings specified above. See [`log` input settings docs](https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-input-log.html) for details.
 
         type: yaml
         default: ""