Add cooldown settings for Dependabot

Author: mbg

.github/dependabot.yml

@@ -4,14 +4,18 @@ updates:
     directory: "/"
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
+      exclude:
+        - "@actions/*"
     labels:
       - Rebuild
     # Ignore incompatible dependency updates
     ignore:
       # There is a type incompatibility issue between v0.0.9 and our other dependencies.
       - dependency-name: "@octokit/plugin-retry"
         versions: ["~6.0.0"]
-      # This is broken due to the way configuration files have changed. 
+      # This is broken due to the way configuration files have changed.
       # This might be fixed when we move to eslint v9.
       - dependency-name: "eslint-plugin-import"
         versions: [">=2.30.0"]
@@ -28,6 +32,10 @@ updates:
       - "/.github/actions"
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
+      exclude:
+        - "actions/*"
     labels:
       - Rebuild
     groups: