[main](backport elastic#32203) Update system metrics (elastic#32205)

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

Add changelog for CPU state changes.

(cherry picked from commit cec2491)

Co-authored-by: Craig MacKenzie <craig.mackenzie@elastic.co>

CHANGELOG.next.asciidoc

@@ -111,6 +111,7 @@ https://github.com/elastic/beats/compare/v8.2.0\...main[Check the HEAD diff]
 - Enhance Oracle Module: Connection string for Oracle does not handle special characters properly {issue}24609[24609] {pull}31368[#31368]
 - Enhance Oracle Module: New sysmetric metricset {issue}30946[30946] {pull}31462[#31462]
 - Upgrade Mongodb library in Beats to v5 {pull}31185[31185]
+* Differentiate between actual idle CPU states and an uninterruptible disk sleep. https://github.com/elastic/elastic-agent-system-metrics/pull/32[system-metrics#32]
 
 *Packetbeat*
 

NOTICE.txt

@@ -6595,11 +6595,11 @@ these terms.
 
 --------------------------------------------------------------------------------
 Dependency : github.com/elastic/elastic-agent-system-metrics
-Version: v0.4.1
+Version: v0.4.2
 Licence type (autodetected): Apache-2.0
 --------------------------------------------------------------------------------
 
-Contents of probable licence file $GOMODCACHE/github.com/elastic/elastic-agent-system-metrics@v0.4.1/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

@@ -163,7 +163,7 @@ require (
 	github.com/elastic/elastic-agent-autodiscover v0.2.1
 	github.com/elastic/elastic-agent-libs v0.2.9
 	github.com/elastic/elastic-agent-shipper-client v0.2.0
-	github.com/elastic/elastic-agent-system-metrics v0.4.1
+	github.com/elastic/elastic-agent-system-metrics v0.4.2
 	github.com/elastic/go-elasticsearch/v8 v8.2.0
 	github.com/pierrec/lz4/v4 v4.1.15
 	github.com/shirou/gopsutil/v3 v3.21.12

go.sum

@@ -543,8 +543,8 @@ github.com/elastic/elastic-agent-libs v0.2.9 h1:7jOCqNqEWG0kJb3fa8/SC6beSiys1TmA
 github.com/elastic/elastic-agent-libs v0.2.9/go.mod h1:chO3rtcLyGlKi9S0iGVZhYCzDfdDsAQYBc+ui588AFE=
 github.com/elastic/elastic-agent-shipper-client v0.2.0 h1:p+5ep48YCOe+3nICeWmiLwQV11yDLad2n4NunI66Shg=
 github.com/elastic/elastic-agent-shipper-client v0.2.0/go.mod h1:OyI2W+Mv3JxlkEF3OeT7K0dbuxvwew8ke2Cf4HpLa9Q=
-github.com/elastic/elastic-agent-system-metrics v0.4.1 h1:1bKgU0Y2F4PBLSCX2LmJbRd4wWoq5DOvXc9ysuXBVpI=
-github.com/elastic/elastic-agent-system-metrics v0.4.1/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/elastic-transport-go/v8 v8.1.0 h1:NeqEz1ty4RQz+TVbUrpSU7pZ48XkzGWQj02k5koahIE=
 github.com/elastic/elastic-transport-go/v8 v8.1.0/go.mod h1:87Tcz8IVNe6rVSLdBux1o/PEItLtyabHU3naC7IoqKI=
 github.com/elastic/fsevents v0.0.0-20181029231046-e1d381a4d270 h1:cWPqxlPtir4RoQVCpGSRXmLqjEHpJKbR60rxh1nQZY4=