[devicelab] Refactor devicelab using repo_util.

Bug: https://github.com/flutter/flutter/issues/53789
Change-Id: I11eae4c99d73d91cd397e04730879abb8f394d20
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/3121
Reviewed-by: Godofredo Contreras <godofredoc@google.com>
Commit-Queue: Tong Wu <wutong@google.com>
3 files changed
tree: ed78a27236533105b34c44d937c0d73a1cef00fa
  1. infra/
  2. recipe_modules/
  3. recipes/
  4. .gitignore
  5. .style.yapf
  6. recipes.py