chore(ci): add aws-sdk group and ignore middy upgrades in examples (#1893)

* ignore @middy/core major version update on specific proejcts

* add @AWS-SDK group at the top level

* remove aws-sdk from the wrong block

Author: am29d

.github/dependabot.yml

@@ -32,12 +32,17 @@ updates:
     directory: /examples/cdk
     schedule:
       interval: daily
-
+    ignore:
+      - dependency-name: "@middy/core"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: npm
     directory: /examples/sam
     schedule:
       interval: daily
+    ignore:
+      - dependency-name: "@middy/core"
+        update-types: [ "version-update:semver-major" ]
 
   - package-ecosystem: npm
     directory: /layers
@@ -48,9 +53,10 @@ updates:
     directory: /
     schedule:
       interval: daily
-    ignore:
-      - dependency-name: "@middy/core"
-        update-types: ["version-update:semver-major"]
+    groups:
+      aws-sdk:
+        patterns:
+        - "@aws-sdk/**"
 
   - package-ecosystem: npm
     directory: /packages/batch