fix: new version announcement bot (#289)

Author: cmeesters

.github/workflows/announce-release.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Post to Mastodon
-        uses: snakemake/[email protected].1
+        uses: snakemake/[email protected].2
         with:
           access-token: ${{ secrets.MASTODONBOT }}
           pr-title: ${{ github.event.release.tag_name }}