fix: upgrade @actions/core from 1.10.1 to 1.11.1

Snyk has created this PR to upgrade @actions/core from 1.10.1 to 1.11.1.

See this package in npm:
@actions/core

See this project in Snyk:
https://app.snyk.io/org/nerds-github/project/00eaf84d-a05e-4e1a-923e-697960352bb8?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

packages/attest/package.json

@@ -42,7 +42,7 @@
     "undici": "^5.28.4"
   },
   "dependencies": {
-    "@actions/core": "^1.10.1",
+    "@actions/core": "^1.11.1",
     "@actions/github": "^6.0.0",
     "@actions/http-client": "^2.2.3",
     "@octokit/plugin-retry": "^6.0.1",