ci: deprecate old dev releases on publish (#5992)

Co-authored-by: Noel <buechler.noel@outlook.com>

.github/workflows/publish-dev.yml

@@ -21,6 +21,11 @@ jobs:
         # Remove --no-optional after Node 16 upgrade
         run: npm ci --ignore-scripts --no-optional
 
+      - name: Deprecate old versions
+        run: npm deprecate discord.js@"~13.0.0-dev" "no longer supported" || true
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}
+
       - name: Publish
         run: |
           npm version --git-tag-version=false $(jq --raw-output '.version' package.json).$(git rev-parse --short HEAD).$(date +%s)