Change log line for matcher condition (#35119)

* change log line for matcher condition

* add changelog

CHANGELOG.next.asciidoc

@@ -63,6 +63,7 @@ https://github.com/elastic/beats/compare/v8.2.0\...main[Check the HEAD diff]
 - The Elasticsearch output now splits large requests instead of dropping them when it receives a StatusRequestEntityTooLarge error. {pull}34911[34911]
 - Fix Beats started by agent do not respect the allow_older_versions: true configuration flag {issue}34227[34227] {pull}34964[34964]
 - Fix performance issues when we have a lot of inputs starting and stopping by allowing to disable global processors under fleet. {issue}35000[35000] {pull}35031[35031]
+- In cases where the matcher detects a non-string type in a match statement, report the error as a debug statement, and not a warning statement. {pull}35119[35119]
 
 *Auditbeat*
 

libbeat/conditions/matcher.go

@@ -93,7 +93,7 @@ func (c Matcher) Check(event ValuesMap) bool {
 		default:
 			str, err := ExtractString(value)
 			if err != nil {
-				logp.L().Named(logName).Warnf("unexpected type %T in %v condition as it accepts only strings.", value, c.name)
+				logp.L().Named(logName).Debugf("unexpected type %T in %v condition as it accepts only strings; value=%#v", value, c.name, value)
 				return false
 			}