chore(deps): update ilshidur/action-discord action to v0.4.0

Author: renovate[bot]

.github/workflows/notify-discord.yml

@@ -11,6 +11,6 @@ jobs:
       - name: Discord notification 📯
         env:
           DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
-        uses: Ilshidur/action-discord@0.3.2
+        uses: Ilshidur/action-discord@0.4.0
         with:
           args: '${{ github.event.repository.name }} [${{ github.event.release.tag_name }}](${{ github.event.release.html_url }}) has been released. 🚀'