Group babel dependencies (#1026)

Additionally, change to weekly interval with 5 days of cooldown

Author: tagliala

.github/dependabot.yml

@@ -3,17 +3,27 @@ updates:
   - package-ecosystem: github-actions
     directory: "/"
     schedule:
-      interval: daily
+      interval: weekly
+    cooldown:
+      default-days: 5
   - package-ecosystem: bundler
     directory: "/"
     schedule:
-      interval: daily
+      interval: weekly
+    cooldown:
+      default-days: 5
     open-pull-requests-limit: 10
     ignore:
       - dependency-name: sqlite3
         versions: ">= 2" # FIXME: Remove when rails/rails#51636 will be released
   - package-ecosystem: npm
     directory: "/"
     schedule:
-      interval: daily
+      interval: weekly
+    cooldown:
+      default-days: 5
     open-pull-requests-limit: 10
+    groups:
+      babel:
+        patterns:
+          - "@babel/*"