chore: introduce pr-triage-manager to pr-labeler workflow (aws#19530)

`pr-triage-manager` will copy labels from linked issues to the PR. 

Only linked issues that will be closed when the PR is merged will be used. If a PR will close multiple issues, the highest priority will be selected.

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

.github/workflows/pr-labeler.yml

@@ -3,7 +3,10 @@
 name: pr-labeler
 on:
   pull_request:
-    types: [ opened ]
+    types:
+      - opened
+      - edited
+      - reopened
 
 jobs:
   auto-approve:
@@ -13,6 +16,16 @@ jobs:
       pull-requests: write
       issues: write
     steps:
-    - run: gh pr edit ${{ github.event.pull_request.number }} --add-label "auto-approve" -R ${{ github.repository }}
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - run: gh pr edit ${{ github.event.pull_request.number }} --add-label "auto-approve" -R ${{ github.repository }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  copy-labels:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: kaizen3031593/pr-triage-manager@main
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+