fix: package.json & yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-OCTOKITPLUGINPAGINATEREST-8730855
- https://snyk.io/vuln/SNYK-JS-OCTOKITREQUEST-8730853
- https://snyk.io/vuln/SNYK-JS-OCTOKITREQUESTERROR-8730854

Author: snyk-bot

package.json

@@ -26,7 +26,7 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
-    "@actions/artifact": "^2.1.9",
+    "@actions/artifact": "^4.0.0",
     "@actions/core": "^1.10.1",
     "@actions/exec": "^1.1.1",
     "@actions/github": "^6.0.0",