Update dependabot configuration (#105)

Author: afritzler

.github/dependabot.yml

@@ -5,8 +5,6 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    reviewers:
-      - "ironcore-dev/core"
     # Ignore K8 packages as these are done manually
     ignore:
       - dependency-name: "k8s.io/api"
@@ -24,11 +22,7 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    reviewers:
-      - "ironcore-dev/core"
   - package-ecosystem: "docker"
     directory: "/"
     schedule:
       interval: "daily"
-    reviewers:
-      - "ironcore-dev/core"