add dependabot.yml

version: 2

updates:

  - package-ecosystem: "npm"

    directories:

      - "/"

      - "/packages/admin"

      - "/packages/client"

      - "/packages/lib"

      - "/packages/server"

    schedule:

      interval: "daily"

    reviewers:

      - grant

    vulnerability-alerts:

      enabled: true

      confidential: true

      assignees:

        - grant

  - package-ecosystem: "docker"

    directory: "/"

    schedule:

      interval: "weekly"

    reviewers:

      - grant

    vulnerability-alerts:

      enabled: true

      confidential: true

      assignees:

        - grant