Add dependabot groups

Author: xt0rted

Diff for: .github/dependabot.yml

@@ -1,15 +1,28 @@
 version: 2
 updates:
 
-  - package-ecosystem: github-actions
+  - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: daily
-    open-pull-requests-limit: 99
+      interval: "weekly"
+    groups:
+      github-actions:
+        patterns:
+          - "actions/*"
+          - "github/*"
 
-  - package-ecosystem: npm
+  - package-ecosystem: "npm"
     directory: "/"
     schedule:
-      interval: daily
-    open-pull-requests-limit: 99
-    versioning-strategy: increase
+      interval: "weekly"
+    versioning-strategy: "increase"
+    groups:
+      actions:
+        patterns:
+          - "@actions/*"
+      jest:
+        patterns:
+          - "@types/jest"
+          - "jest"
+          - "jest-*"
+          - "ts-jest"