Group dependabot updates, change to weekly and remove the restricion … (#635)

Author: lisajulia

.github/dependabot.yml

@@ -4,14 +4,27 @@ updates:
     directories:
       - "/"
     schedule:
-      interval: daily
-    open-pull-requests-limit: 10
+      interval: weekly
     ignore:
-    - dependency-name:  com.sap.cds:*
-      versions:
-      - ">=4"
+      - dependency-name: "com.sap.cds:*"
+        versions:
+          - ">=4"
+    groups:
+      minor-patch:
+        patterns:
+          - "*"
+        update-types:
+          - minor
+          - patch
 
   - package-ecosystem: github-actions
     directory: "/"
     schedule:
-      interval: daily
+      interval: weekly
+    groups:
+      minor-patch:
+        patterns:
+          - "*"
+        update-types:
+          - minor
+          - patch