🔧 Update Dependabot config (#306)

Author: tiangolo

.github/dependabot.yml

@@ -5,13 +5,8 @@ updates:
  directory: "/"
  schedule:
  interval: "daily"
- # Development/testing dependencies
+ # Python dependencies, covers root dependencies for development and also ./docker-images
  - package-ecosystem: "pip"
  directory: "/"
  schedule:
  interval: "daily"
- # Docker image dependencies
- - package-ecosystem: "pip"
- directory: "/docker-images"
- schedule:
- interval: "daily"