feat: add store delay notice to Discord release notification

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mortik

.github/workflows/release.yml

@@ -234,7 +234,7 @@ jobs:
             -d "$(jq -n \
               --arg title "Fleetyards Sync ${TAG_NAME} released!" \
               --arg url "$RELEASE_URL" \
-              --arg description "$RELEASE_BODY" \
+              --arg description "$RELEASE_BODY"$'\n\n'"_Note: It may take some time for the update to appear in the Chrome Web Store and Firefox Add-ons._" \
               '{
                 embeds: [{
                   title: $title,