chore: update Discord webhook action to version 7.0.0

Author: UnschooledGamer

.github/workflows/community-release-notifier.yml

@@ -100,7 +100,7 @@ jobs:
       # Discord notification
       # ────────────────────────────────────────────────
       - name: Discord Webhook (Publishing)
-        uses: tsickert/discord-webhook@c840d45a03a323fbc3f7507ac7769dbd91bfb164  # v5.3.0
+        uses: tsickert/discord-webhook@b217a69502f52803de774ded2b1ab7c282e99645  # v7.0.0
         with:
           webhook-url: ${{ secrets.DISCORD_WEBHOOK_RELEASE_NOTES }}
           content: ${{ steps.truncate-discord.outputs.string }}