Bump sigstore from 4.1.0 to 4.1.1 (#2816)

Bumps [sigstore](https://github.com/sigstore/sigstore-js) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/sigstore/sigstore-js/releases)
- [Commits](https://github.com/sigstore/sigstore-js/compare/sigstore@4.1.0...sigstore@4.1.1)

---
updated-dependencies:
- dependency-name: sigstore
  dependency-version: 4.1.1
  dependency-type: indirect
...

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

Author: dependabot[bot]