feat: bump apm-data for grouping key changes

keep md5 in 8.x for backward compatibility

Author: kruskall

NOTICE.txt

@@ -393,11 +393,11 @@ these terms.
 
 --------------------------------------------------------------------------------
 Dependency : github.com/elastic/apm-data
-Version: v1.15.0
+Version: v1.16.0
 Licence type (autodetected): Apache-2.0
 --------------------------------------------------------------------------------
 
-Contents of probable licence file $GOMODCACHE/github.com/elastic/apm-data@v1.15.0/LICENSE:
+Contents of probable licence file $GOMODCACHE/github.com/elastic/apm-data@v1.16.0/LICENSE:
 
                                  Apache License
                            Version 2.0, January 2004

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/dgraph-io/badger/v2 v2.2007.4
 	github.com/dustin/go-humanize v1.0.1
 	github.com/elastic/apm-aggregation v1.2.0
-	github.com/elastic/apm-data v1.15.0
+	github.com/elastic/apm-data v1.16.0
 	github.com/elastic/beats/v7 v7.0.0-alpha2.0.20250102181502-1f91ed31767d
 	github.com/elastic/elastic-agent-client/v7 v7.17.0
 	github.com/elastic/elastic-agent-libs v0.18.1

go.sum

@@ -130,8 +130,8 @@ github.com/ebitengine/purego v0.8.1 h1:sdRKd6plj7KYW33EH5As6YKfe8m9zbN9JMrOjNVF/
 github.com/ebitengine/purego v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/elastic/apm-aggregation v1.2.0 h1:UndqG3ccBTjyxTqHujBVjcbVLb9qG1clxRcrp9JRelI=
 github.com/elastic/apm-aggregation v1.2.0/go.mod h1:YllYwPYVV27pbuPfjRtQAKo6eSSrh13PZr38RKYd810=
-github.com/elastic/apm-data v1.15.0 h1:19qq8+OC+eyylUMtd2TrW1YVGrOgXb4d2OJQoqfmqow=
-github.com/elastic/apm-data v1.15.0/go.mod h1:PAkbYNARxvd4nhR+HjCskGv/ev30zZi7jglf8EmWtXc=
+github.com/elastic/apm-data v1.16.0 h1:LkJFoNkadIyqXNo3EMm98J38j9HWDMWUe6F74GaXtJ4=
+github.com/elastic/apm-data v1.16.0/go.mod h1:ST2P1yshhN2U3IbBYyn+Ni3VOFTifavNzMfh7E9zLHY=
 github.com/elastic/beats/v7 v7.0.0-alpha2.0.20250102181502-1f91ed31767d h1:f7HWnj35BO90r0gWRz3DFhLL/y8bTQhHASDgY+AAd+4=
 github.com/elastic/beats/v7 v7.0.0-alpha2.0.20250102181502-1f91ed31767d/go.mod h1:KCqU8Vg/PRlBpjFS0vT6EMLzI16+85md82k/glDEVQ8=
 github.com/elastic/elastic-agent-autodiscover v0.9.0 h1:+iWIKh0u3e8I+CJa3FfWe9h0JojNasPgYIA47gpuuns=

internal/beater/beater.go

@@ -19,6 +19,7 @@ package beater
 
 import (
 	"context"
+	"crypto/md5"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -471,7 +472,9 @@ func (s *Runner) Run(ctx context.Context) error {
 		// aggregation, sampling, and indexing.
 		modelprocessor.SetHostHostname{},
 		modelprocessor.SetServiceNodeName{},
-		modelprocessor.SetGroupingKey{},
+		modelprocessor.SetGroupingKey{
+			NewHash: md5.New,
+		},
 		modelprocessor.SetErrorMessage{},
 	}
 	if s.config.DefaultServiceEnvironment != "" {