dependabot - Segment by responsible team (elastic#35723)

Segment the dependabot config based on the responsible GitHub
team in order to make it more clear who is responsible for approving
the change.

The idea is that the responsible team is in the best position to know
if the dependency should be updated, whether it should be backported,
and what should be listed in the changelog.

.github/CODEOWNERS

@@ -109,6 +109,7 @@ CHANGELOG*
 /x-pack/filebeat/input/azureblobstorage/ @elastic/security-external-integrations
 /x-pack/filebeat/input/azureeventhub/ @elastic/obs-cloud-monitoring
 /x-pack/filebeat/input/cel/ @elastic/security-external-integrations
+/x-pack/filebeat/input/cometd/ @elastic/obs-infraobs-integrations
 /x-pack/filebeat/input/entityanalytics/ @elastic/security-external-integrations
 /x-pack/filebeat/input/gcppubsub/ @elastic/security-external-integrations
 /x-pack/filebeat/input/gcs/ @elastic/security-external-integrations

.github/dependabot.yml

@@ -1,15 +1,64 @@
 ---
 version: 2
+# This section is segmented by the responsible GitHub teams in order
+# to make it clear who is responsible for reviewing.
 updates:
-  - package-ecosystem: "gomod"
-    directory: "/"
+  - package-ecosystem: gomod
+    directory: /
     schedule:
-      interval: "daily"
+      interval: daily
     labels:
       - automation
+      - dependabot
       - Team:Elastic-Agent-Data-Plane
     allow:
-      - dependency-name: "github.com/elastic/*"
+      - dependency-name: github.com/elastic/elastic-agent-autodiscover
+      - dependency-name: github.com/elastic/elastic-agent-client/*
+      - dependency-name: github.com/elastic/elastic-agent-libs
+      - dependency-name: github.com/elastic/elastic-agent-shipper-client
+      - dependency-name: github.com/elastic/elastic-agent-system-metrics
+      - dependency-name: github.com/elastic/go-concert
+      - dependency-name: github.com/elastic/go-elasticsearch/*
+      - dependency-name: github.com/elastic/go-licenser
+      - dependency-name: github.com/elastic/go-lookslike
+      - dependency-name: github.com/elastic/go-lumber
+      - dependency-name: github.com/elastic/go-structform
+      - dependency-name: github.com/elastic/go-sysinfo
+      - dependency-name: github.com/elastic/go-ucfg
+      - dependency-name: github.com/elastic/gosigar
+      - dependency-name: go.elastic.co/apm/*
+      - dependency-name: go.elastic.co/ecszap
+      - dependency-name: go.elastic.co/go-licence-detector
     reviewers:
-      - "elastic/elastic-agent-data-plane"
-    open-pull-requests-limit: 10
+      - elastic/elastic-agent-data-plane
+    open-pull-requests-limit: 2
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: daily
+    labels:
+      - automation
+      - dependabot
+      - Team:Security-External Integrations
+    allow:
+      # Skip github.com/elastic/mito because it requires documentation updates.
+      - dependency-name: github.com/elastic/go-libaudit/*
+      - dependency-name: github.com/elastic/go-perf
+      - dependency-name: github.com/elastic/go-seccomp-bpf
+      - dependency-name: github.com/elastic/toutoumomoma
+    reviewers:
+      - elastic/security-external-integrations
+    open-pull-requests-limit: 2
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: daily
+    labels:
+      - automation
+      - dependabot
+      - Team:Service-Integrations
+    allow:
+      - dependency-name: github.com/elastic/bayeux
+    reviewers:
+      - elastic/obs-infraobs-integrations
+    open-pull-requests-limit: 2