fix(build): add @swc/helpers as direct dependency to fix npm ci

- add @swc/helpers@^0.5.20 to satisfy @swc/core peer dependency (>=0.5.17)
- prevents npm ci failure on CI where peer dep resolves to 0.5.20

🔧 - Generated by Copilot

Author: emmanuelknafo

package-lock.json

@@ -21,6 +21,7 @@
     "@azure/monitor-opentelemetry": "^1.16.0",
     "@opentelemetry/api": "^1.9.0",
     "@opentelemetry/api-logs": "^0.57.0",
+    "@swc/helpers": "^0.5.20",
     "accessibility-checker": "^4.0.13",
     "commander": "^14.0.3",
     "crawlee": "^3.16.0",