chore(github): remove dependabot

.github/dependabot.yml

@@ -1,50 +0,0 @@
-version: 2
-updates:
-  # npm packages
-  - package-ecosystem: 'npm'
-    directory: '/'
-    schedule:
-      interval: 'weekly'
-      day: 'monday'
-    open-pull-requests-limit: 10
-    rebase-strategy: 'auto'
-    labels:
-      - 'dependencies'
-    groups:
-      # Group all non-major updates into single PR to reduce noise
-      minor-and-patch:
-        patterns:
-          - '*'
-        update-types:
-          - 'minor'
-          - 'patch'
-    ignore:
-      # Major version updates often have breaking changes - handle manually
-      # Uncomment any you want to pin:
-      # - dependency-name: "typescript"
-      #   update-types: ["version-update:semver-major"]
-
-  # Docker base images
-  - package-ecosystem: 'docker'
-    directory: '/'
-    schedule:
-      interval: 'weekly'
-      day: 'monday'
-    rebase-strategy: 'auto'
-    labels:
-      - 'dependencies'
-
-  # GitHub Actions
-  - package-ecosystem: 'github-actions'
-    directory: '/'
-    schedule:
-      interval: 'weekly'
-      day: 'monday'
-    rebase-strategy: 'auto'
-    labels:
-      - 'dependencies'
-    groups:
-      # Group all action updates together
-      actions:
-        patterns:
-          - '*'