Upgrade to GitHub-native Dependabot (#1236)
Upgrade to GitHub-native Dependabot (#1236)

* Upgrade to GitHub-native Dependabot

* Remove meaningless ignore

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
Co-authored-by: Chitoku <b662f814b2531a3dca90d16b66f667e156708e98@chitoku.jp>
chitoku-k/HomoChecker,chitoku-k/HomoChecker,chitoku-k/HomoChecker