Add ignore for dependencies managed by skeleton.

.github/dependabot.yml

@@ -8,6 +8,17 @@ updates:
  ignore:
  - dependency-name: '*'
  update-types: [version-update:semver-patch, version-update:semver-minor]
+ # Managed by cisagov/skeleton-generic
+ - dependency-name: actions/cache
+ - dependency-name: actions/checkout
+ - dependency-name: actions/setup-go
+ - dependency-name: actions/setup-python
+ - dependency-name: crazy-max/ghaction-dump-context
+ - dependency-name: crazy-max/ghaction-github-labeler
+ - dependency-name: crazy-max/ghaction-github-status
+ - dependency-name: hashicorp/setup-terraform
+ - dependency-name: mxschmitt/action-tmate
+ - dependency-name: step-security/harden-runner
  - package-ecosystem: terraform
  directory: /infrastructure
  schedule: