ci: Update Dependabot configuration

- Add ignore rule for k8s.io/* dependencies
- Remove k8s.io dependency grouping
- Add GPU mockctl container directory for Docker updates
- Reorganize configuration sections for clarity

Ensures proper dependency management for GPU mock components.

Signed-off-by: Carlos Eduardo Arango Gutierrez <[email protected]>

Author: ArangoGutierrez

.github/dependabot.yml

@@ -3,33 +3,31 @@
 
 version: 2
 updates:
+# main branch
   - package-ecosystem: "gomod"
     target-branch: main
     directory: "/"
     schedule:
       interval: "weekly"
       day: "sunday"
+    ignore:
+    - dependency-name: k8s.io/*
     labels:
     - dependencies
-    groups:
-      k8sio:
-        patterns:
-        - k8s.io/*
-        exclude-patterns:
-        - k8s.io/klog/*
-
-  - package-ecosystem: "github-actions"
-    target-branch: main
-    directory: "/"
-    schedule:
-      interval: "daily"
 
   - package-ecosystem: "docker"
     target-branch: main
     directories:
-    # Golang version
+    # GPU mockctl image
+    - "/deployments/devel/gpu-mock/container"
+    # Other development images
     - "/deployments/devel"
     schedule:
       interval: "daily"
     labels:
     - dependencies
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"