chore: set aws-cdk-owners as reviewer for all PRs (#19633)

.github/workflows/issue-label-assign.yml

@@ -3,9 +3,9 @@ on:
  issues:
     types: [opened, edited]
  pull_request:
-    types: [opened, edited]
+    types: [opened]
  pull_request_target:
-    types: [opened, edited]
+    types: [opened]
 
 jobs:
   issue-triage-manager:
@@ -39,7 +39,7 @@ jobs:
           included-labels: "[guidance]"
           default-area: ${{ env.OSDS_DEVS }}
           parameters: >
-            [{"area":"guidance","keywords":["guidance"]}]
+            [{"area":"guidance","keywords":["guidancekeyword"]}]
   pr-triage-manager:
     permissions:
       issues: write
@@ -51,9 +51,11 @@ jobs:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
           target: "pull-requests"
           area-is-keyword: true
-          excluded-labels: "[contribution/core]"
-          parameters: ${{ env.AREA_PARAMS }}
-          affixes: ${{ env.AREA_AFFIXES }}
+          default-area: >
+            {"reviewers":{"teamReviewers":["aws-cdk-owners"]}}
+          parameters: >
+            [{"area":"pullrequests","keywords":["pullrequestkeyword"]}]
+
 
 env:
  OSDS_DEVS: >