Downgrade elastic-agent-system-metrics to v0.4.2.

elastic#32467 was introduced in v0.4.3.

Manual backport of elastic#32470

NOTICE.txt

@@ -6492,11 +6492,11 @@ Contents of probable licence file $GOMODCACHE/github.com/elastic/elastic-agent-l
 
 --------------------------------------------------------------------------------
 Dependency : github.com/elastic/elastic-agent-system-metrics
-Version: v0.4.3
+Version: v0.4.2
 Licence type (autodetected): Apache-2.0
 --------------------------------------------------------------------------------
 
-Contents of probable licence file $GOMODCACHE/github.com/elastic/elastic-agent-system-metrics@v0.4.3/LICENSE.txt:
+Contents of probable licence file $GOMODCACHE/github.com/elastic/elastic-agent-system-metrics@v0.4.2/LICENSE.txt:
 
                                  Apache License
                            Version 2.0, January 2004

go.mod

@@ -162,7 +162,7 @@ require (
 	github.com/elastic/bayeux v1.0.5
 	github.com/elastic/elastic-agent-autodiscover v0.2.1
 	github.com/elastic/elastic-agent-libs v0.2.9
-	github.com/elastic/elastic-agent-system-metrics v0.4.3
+	github.com/elastic/elastic-agent-system-metrics v0.4.2 // do not upgrade until https://github.com/elastic/beats/issues/32467 is fixed
 	github.com/shirou/gopsutil/v3 v3.21.12
 	go.elastic.co/apm/module/apmelasticsearch/v2 v2.0.0
 	go.elastic.co/apm/module/apmhttp/v2 v2.0.0

go.sum

@@ -536,8 +536,8 @@ github.com/elastic/elastic-agent-libs v0.2.2/go.mod h1:1xDLBhIqBIjhJ7lr2s+xRFFkQ
 github.com/elastic/elastic-agent-libs v0.2.5/go.mod h1:chO3rtcLyGlKi9S0iGVZhYCzDfdDsAQYBc+ui588AFE=
 github.com/elastic/elastic-agent-libs v0.2.9 h1:7jOCqNqEWG0kJb3fa8/SC6beSiys1TmAylH9+hWTnrM=
 github.com/elastic/elastic-agent-libs v0.2.9/go.mod h1:chO3rtcLyGlKi9S0iGVZhYCzDfdDsAQYBc+ui588AFE=
-github.com/elastic/elastic-agent-system-metrics v0.4.3 h1:W6OS+Owt+DeoyGIZLPE/XYKU1zreGyjMN/PP1OWJo8c=
-github.com/elastic/elastic-agent-system-metrics v0.4.3/go.mod h1:tF/f9Off38nfzTZHIVQ++FkXrDm9keFhFpJ+3pQ00iI=
+github.com/elastic/elastic-agent-system-metrics v0.4.2 h1:tM24imnCLNrgrO74myzSF6RhJ3ikeF8VIxKdXB5RHzk=
+github.com/elastic/elastic-agent-system-metrics v0.4.2/go.mod h1:tF/f9Off38nfzTZHIVQ++FkXrDm9keFhFpJ+3pQ00iI=
 github.com/elastic/fsevents v0.0.0-20181029231046-e1d381a4d270 h1:cWPqxlPtir4RoQVCpGSRXmLqjEHpJKbR60rxh1nQZY4=
 github.com/elastic/fsevents v0.0.0-20181029231046-e1d381a4d270/go.mod h1:Msl1pdboCbArMF/nSCDUXgQuWTeoMmE/z8607X+k7ng=
 github.com/elastic/go-concert v0.2.0 h1:GAQrhRVXprnNjtvTP9pWJ1d4ToEA4cU5ci7TwTa20xg=