ci: fix dependabot.yml error

seratch · seratch · commit 700792f6dc90 · 2026-01-20T13:54:21.000+09:00
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -4,7 +4,6 @@ updates:
     directory: "/"
     schedule:
       interval: "monthly"
-      day-of-month: 1
       time: "09:00"
       timezone: "UTC"
     groups:
