Check for Dependabot version updates weekly instead of daily

.github/dependabot.yml

@@ -1,14 +1,15 @@
 # Dependabot configuration for automated dependency updates
 #
 # This file is the same in each EngineScript plugin repository. Every ecosystem
-# is checked daily, which is the shortest interval Dependabot offers.
+# is checked weekly, on Mondays at 09:00 UTC, so each week's updates arrive together.
 version: 2
 updates:
   # Updates for GitHub Actions used in workflows
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+      day: "monday"
       time: "09:00"
     # Set custom labels on pull requests
     labels:
@@ -28,7 +29,8 @@ updates:
   - package-ecosystem: "composer"
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+      day: "monday"
       time: "09:00"
     # Set custom labels on pull requests
     labels:
@@ -55,7 +57,8 @@ updates:
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+      day: "monday"
       time: "09:00"
     # Set custom labels on pull requests
     labels:
@@ -85,7 +88,8 @@ updates:
   - package-ecosystem: "pip"
     directory: "/.github"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+      day: "monday"
       time: "09:00"
     # Set custom labels on pull requests
     labels: