Better schedule dependabot updates (#276)

Author: cdce8p

.github/dependabot.yml

@@ -4,6 +4,8 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "monday"
+      time: "5:00"
     labels:
       - "dependency"
     assignees:
@@ -17,6 +19,8 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "monday"
+      time: "5:00"
     labels:
       - "dependency"
     assignees: