fix pull_items + add discord_webhook

.github/pull_hub_items.sh

@@ -8,6 +8,7 @@ for item in ${RT[@]}; do
     body=$(curl -s -H "accept: application/json" https://hub.windmill.dev/resource_types/${id}/${name})
     jq -r '.resource_type.schema' <<< "$body" > ./tmp
     description=$(jq -r '.resource_type.description' <<< "$body")
+    description=$(echo -E $description)
     echo "{\"workspace_id\": \"starter\", \"name\": \"$name\", \"schema\": $(cat ./tmp), \"description\": \"$description\"} " | jq . > community/resource_types/${name}.json
     rm ./tmp
 done