Bump @actions/core in /codeql-learninglab-check/package

Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.2.0 to 1.2.6.
- [Release notes](https://github.com/actions/toolkit/releases)
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/core/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/core)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

codeql-learninglab-check/package/package-lock.json

@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@actions/core": "^1.2.0",
+    "@actions/core": "^1.2.6",
     "@octokit/rest": "^16.35.2",
     "@octokit/webhooks": "^7.0.0",
     "@types/csv-parse": "^1.2.2",