ci(dependabot): Enable automatic PR assignment for team

Author: flovogt

.github/CODEOWNERS

@@ -0,0 +1 @@
+@UI5/ui5-team-cor-fnd

.github/dependabot.yml

@@ -4,16 +4,16 @@ updates:
   directory: "/"
   schedule:
     interval: "weekly"
+  commit-message:
+    prefix: "ci(github-actions)"
 - package-ecosystem: npm
   directory: "/"
   schedule:
     interval: weekly
     day: sunday
     time: "10:00"
     timezone: Etc/UCT
-  reviewers:
-  - "SAP/ui5-foundation"
   versioning-strategy: increase
   commit-message:
-    prefix: "[DEPENDENCY] "
-    prefix-development: "[INTERNAL] "
+    prefix: "deps"
+    prefix-development: "build(deps-dev)"