Bump @actions/attest from 2.0.0 to 2.1.0 (#775)

* Bump @actions/attest from 2.0.0 to 2.1.0

Bumps [@actions/attest](https://github.com/actions/toolkit/tree/HEAD/packages/attest) from 2.0.0 to 2.1.0.
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/attest/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/attest)

---
updated-dependencies:
- dependency-name: "@actions/attest"
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* rebuild dist

Signed-off-by: Brian DeHamer <bdehamer@github.com>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Brian DeHamer <bdehamer@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Brian DeHamer <bdehamer@github.com>

Author: dependabot[bot]

dist/index.js

@@ -70,7 +70,7 @@
     ]
   },
   "dependencies": {
-    "@actions/attest": "^2.0.0",
+    "@actions/attest": "^2.1.0",
     "@actions/core": "^1.11.1"
   },
   "devDependencies": {