chore(ci): fix duplicate docker keycloakify

.github/dependabot.yml

@@ -43,15 +43,6 @@ updates:
           update-types:
             - "minor"
             - "patch"
-  - package-ecosystem: docker
-    directory: keycloak/keycloakify
-    schedule:
-      interval: weekly
-    groups:
-      minorAndPatch:
-          update-types:
-            - "minor"
-            - "patch"
   - package-ecosystem: docker
     directories:
       - website

.github/workflows/dependabot-validate.yml

@@ -0,0 +1,23 @@
+name: dependabot validate
+
+on:
+  pull_request:
+    paths:
+      - ".github/dependabot.yml"
+      - ".github/workflows/dependabot-validate.yml"
+jobs:
+  validate:
+    permissions:
+      contents: read
+      pull-requests: write
+      issues: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: marocchino/validate-dependabot@v3
+        id: validate
+      - uses: marocchino/sticky-pull-request-comment@v2
+        if: always()
+        with:
+          header: validate-dependabot
+          message: ${{ steps.validate.outputs.markdown }}