[Backport 2.x] Bump release-drafter/release-drafter from 5 to 6 (#4021)

Backport f75d0c9 from #4016.

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.github/workflows/release-drafter.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Drafts the next Release notes as Pull Requests are merged into "main"
-      - uses: release-drafter/release-drafter@v5
+      - uses: release-drafter/release-drafter@v6
         with:
           config-name: release-notes-drafter-config.yml
         env: