Update release-drafter/release-drafter action to v6

Author: renovate[bot]

.github/workflows/release-drafter.yml

@@ -9,6 +9,6 @@ jobs:
   update_release_draft:
     runs-on: ubuntu-latest
     steps:
-      - uses: release-drafter/release-drafter@v5
+      - uses: release-drafter/release-drafter@v6
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}