merge dependabot into single config (#4003)

.github/dependabot.yml

@@ -1,20 +1,6 @@
 ---
 version: 2
 updates:
-  - package-ecosystem: "gomod"
-    directory: "/"
-    schedule:
-      interval: "daily"
-    labels:
-      - automation
-      - skip-changelog
-      - Team:Elastic-Agent
-    allow:
-      # Only update internal dependencies for now while we evaluate this workflow.
-      - dependency-name: "github.com/elastic/*"
-    reviewers:
-      - "elastic/elastic-agent-control-plane"
-    open-pull-requests-limit: 10
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
@@ -25,13 +11,14 @@ updates:
       - Team:Elastic-Agent
     groups:
         otel-dependencies:
-            patterns:
-             - "*"
+            exclude-patterns:
+             - "github.com/elastic/*"
             update-types:
              - "minor"
              - "patch"
     allow:
       # Only update internal dependencies for now while we evaluate this workflow.
+      - dependency-name: "github.com/elastic/*"
       - dependency-name: "go.opentelemetry.io/collector/*"
       - dependency-name: "github.com/open-telemetry/opentelemetry-collector-contrib/*"
     reviewers: