Update NOTICE.txt

Author: dependabot[bot]

NOTICE.txt

@@ -2434,11 +2434,11 @@ Contents of probable licence file $GOMODCACHE/github.com/elastic/go-sysinfo@v1.1
 
 --------------------------------------------------------------------------------
 Dependency : github.com/elastic/go-ucfg
-Version: v0.8.7
+Version: v0.8.8
 Licence type (autodetected): Apache-2.0
 --------------------------------------------------------------------------------
 
-Contents of probable licence file $GOMODCACHE/github.com/elastic/go-ucfg@v0.8.7/LICENSE:
+Contents of probable licence file $GOMODCACHE/github.com/elastic/go-ucfg@v0.8.8/LICENSE:
 
                                  Apache License
                            Version 2.0, January 2004