build(deps): bump @actions/artifact from 2.1.5 to 2.1.6

Bumps [@actions/artifact](https://github.com/actions/toolkit/tree/HEAD/packages/artifact) from 2.1.5 to 2.1.6.
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/artifact/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/artifact)

---
updated-dependencies:
- dependency-name: "@actions/artifact"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -2,7 +2,7 @@
   "name": "action-download-artifact",
   "main": "main.js",
   "dependencies": {
-    "@actions/artifact": "^2.1.5",
+    "@actions/artifact": "^2.1.6",
     "@actions/core": "^1.10.1",
     "@actions/github": "^6.0.0",
     "adm-zip": "^0.5.12",